Refine
Has Fulltext
- no (76)
Author
- Dyks, J. (70)
- Egberts, Kathrin (70)
- Fontaine, G. (70)
- Hermann, G. (70)
- Khelifi, B. (70)
- Kosack, K. (70)
- Lamanna, G. (70)
- Moderski, R. (70)
- Moulin, Emmanuel (70)
- Niemiec, J. (70)
- Ostrowski, M. (70)
- Panter, M. (70)
- Pita, S. (70)
- Renaud, M. (70)
- Rudak, B. (70)
- Santangelo, Andrea (70)
- Schwanke, U. (70)
- Steenkamp, R. (70)
- Terrier, R. (70)
- Vincent, P. (70)
- White, R. (70)
- Aharonian, Felix A. (69)
- Bolmont, J. (69)
- Hahn, J. (69)
- Horns, D. (69)
- Klepser, S. (69)
- Kluzniak, W. (69)
- Lohse, T. (69)
- Marcowith, Alexandre (69)
- Peyaud, B. (69)
- Quirrenbach, A. (69)
- Reimer, A. (69)
- Rieger, F. (69)
- Schwemmer, S. (69)
- Sol, H. (69)
- Tluczykont, M. (69)
- Vasileiadis, G. (69)
- Wierzcholska, A. (69)
- Zech, Alraune (69)
- Casanova, Sabrina (68)
- Fegan, S. (68)
- Gallant, Y. A. (68)
- Hofmann, W. (68)
- Ohm, S. (68)
- Parsons, R. D. (68)
- Schlickeiser, R. (68)
- Schulz, A. (68)
- Stawarz, L. (68)
- Zacharias, M. (68)
- de Naurois, M. (68)
- Fiasson, A. (67)
- Glicenstein, J. F. (67)
- Heinzelmann, G. (67)
- Henri, G. (67)
- Kastendieck, M. A. (67)
- Lemoine-Goumard, M. (67)
- Maurin, G. (67)
- Punch, M. (67)
- Stegmann, Christian (67)
- Trichard, C. (67)
- Zdziarski, A. A. (67)
- Davids, I. D. (66)
- Jacholkowska, A. (66)
- Mohamed, M. (66)
- Raab, S. (66)
- Rowell, G. (66)
- Venter, C. (66)
- Wagner, S. J. (66)
- Bordas, Pol (65)
- Jamrozy, M. (65)
- Reimer, O. (64)
- Deil, C. (63)
- Katarzynski, K. (63)
- Katz, U. (63)
- Oakes, L. (63)
- Voelk, H. J. (63)
- Lefaucheur, J. (62)
- Murach, T. (62)
- Puehlhofer, G. (62)
- Tjus, J. Becker (61)
- Jankowsky, F. (60)
- Marx, R. (60)
- Oya, I. (60)
- Viana, A. (60)
- van Eldik, C. (60)
- Sahakian, V. (59)
- Farnier, C. (58)
- Giavitto, G. (58)
- Lemiere, A. (58)
- Maxted, N. (58)
- Tavernier, T. (58)
- Taylor, A. M. (58)
- Garrigoux, T. (57)
- Marandon, V. (57)
- Romoli, C. (57)
- Rulten, C. B. (57)
- Holler, M. (56)
- Laffon, H. (56)
- Pelletier, G. (56)
- Giebels, B. (55)
- Klochkov, D. (55)
- Krakau, S. (55)
- Meintjes, P. J. (55)
- Pekeur, N. W. (55)
- Vuillaume, T. (55)
- Wouters, D. (54)
- Fernandes, M. V. (53)
- van Soelen, B. (53)
- Domainko, W. (52)
- Dutson, K. (52)
- Eger, P. (52)
- Fuessling, M. (52)
- Tavernet, J. -P. (52)
- Wagner, P. (52)
- deWilt, P. (52)
- Akhperjanian, A. G. (51)
- Grondin, M. -H. (51)
- Lenain, J. -P. (51)
- Willmann, P. (51)
- Edwards, T. (50)
- Komin, Nu. (50)
- Cerruti, M. (49)
- Foerster, A. (49)
- Mayer, M. (49)
- Meyer, M. (49)
- Petrucci, P. -O. (49)
- Spengler, G. (49)
- Vink, J. (49)
- Woernlein, A. (49)
- Degrange, B. (48)
- Odaka, H. (48)
- Stycz, K. (48)
- Yang, R. (48)
- de los Reyes, R. (48)
- Gabici, S. (47)
- Kolitzus, D. (47)
- Angüner, Ekrem Oǧuzhan (46)
- Gajdus, M. (46)
- Janiak, M. (46)
- Veh, J. (46)
- Wagner, R. M. (46)
- Hinton, James Anthony (45)
- Poon, H. (45)
- Stinzing, F. (45)
- Donath, A. (44)
- Dubus, G. (44)
- Rosier-Lees, S. (44)
- Gottschall, D. (43)
- Krueger, P. P. (43)
- Sanchez, David M. (43)
- Arribas, M. Paz (42)
- Krayzel, F. (42)
- Zaborov, D. (42)
- Chakraborty, N. (41)
- Dyrda, M. (41)
- Mitchell, A. M. W. (41)
- Becherini, Yvonne (40)
- Birsin, E. (40)
- Bulik, Tomasz (40)
- Chalme-Calvet, R. (40)
- Chretien, M. (40)
- Hervet, O. (40)
- Prokoph, H. (40)
- Spanier, F. (40)
- Bernlöhr, K. (39)
- Boisson, Catherine (39)
- Brun, Pierre (39)
- Conrad, Jan (39)
- Sushch, Iurii (39)
- Colafrancesco, Sergio (38)
- Couturier, C. (38)
- Grudzinska, M. (38)
- Hillert, A. (38)
- Kieffer, M. (38)
- Spies, F. (38)
- Abramowski, Attila (37)
- Balzer, Arnim (37)
- Brun, Francois (37)
- Chaves, Ryan C. G. (37)
- Cui, Y. (37)
- Hoischen, Clemens (37)
- Seyffert, A. S. (37)
- Simoni, R. (37)
- Zabalza, V. (37)
- Blackwell, R. (36)
- Cologna, Gabriele (36)
- Feinstein, F. (36)
- Hofverberg, P. (36)
- Lopatin, A. (36)
- Mariaud, C. (36)
- Menzler, U. (36)
- Sasaki, M. (36)
- Tuffs, R. (36)
- Funk, S. (35)
- Lau, J. (35)
- Schuessler, F. (35)
- Valerius, K. (35)
- Voisin, F. (35)
- Zywucka, N. (35)
- Djannati-Ataï, A. (34)
- Espigat, P. (34)
- Fernandez, D. (34)
- Haeffner, S. (34)
- Mora, K. (34)
- Niederwanger, F. (34)
- Opitz, B. (34)
- Shafi, N. (34)
- Wadiasingh, Z. (34)
- Ziegler, A. (34)
- Barnacka, Anna (33)
- Ivascenko, A. (33)
- Jankowsky, D. (33)
- King, J. (33)
- Schwarzburg, S. (33)
- Volpe, F. (33)
- Abdalla, Hassan E. (32)
- Biteau, Jonathan (32)
- Capasso, M. (32)
- Chadwick, Paula M. (32)
- Djannati-Atai, A. (32)
- Eschbach, S. (32)
- Jahn, C. (32)
- McComb, T. J. L. (32)
- Nolan, S. J. (32)
- Berge, D. (31)
- Boisson, C. (31)
- Brun, F. (31)
- Brun, P. (31)
- Bryan, M. (31)
- Carrigan, Svenja (31)
- Chen, A. (31)
- Condon, B. (31)
- Devin, J. (31)
- Harris, J. (31)
- Kaufmann, S. (31)
- Kerszberg, D. (31)
- Kraus, M. (31)
- Leser, Eva (31)
- Mehault, J. (31)
- Uchiyama, Y. (31)
- Vorster, M. (31)
- Ward, M. (31)
- Zefi, F. (31)
- Backes, M. (30)
- Balenderan, Shangkari (30)
- Barnard, M. (30)
- Becherini, Y. (30)
- Benkhali, F. Ait (30)
- Bregeon, J. (30)
- Bulik, T. (30)
- Dirson, L. (30)
- Haupt, M. (30)
- Jung-Richardt, I. (30)
- Mohrmann, L. (30)
- Perennes, C. (30)
- Tiziani, D. (30)
- Arrieta, M. (29)
- Colafrancesco, S. (29)
- Jouvin, L. (29)
- Lorentz, M. (29)
- Benkhali, Faical Ait (28)
- Jung, I. (28)
- Lopez-Coto, R. (28)
- Piel, Q. (28)
- Rob, L. (28)
- Weidinger, M. (28)
- Weitzel, Q. (28)
- Wilhelmi, E. de Ona (28)
- Zanin, R. (28)
- van Rensburg, C. (28)
- Chaves, R. C. G. (27)
- Ernenwein, J. -P. (27)
- Lefranc, V. (27)
- Tibaldo, L. (27)
- Dalton, M. (26)
- Khangulyan, D. (26)
- Lu, C. -C. (26)
- Padovani, M. (26)
- Salek, D. (26)
- Takahashi, T. (26)
- van der Walt, D. J. (26)
- Bernloehr, K. (25)
- Boettcher, Markus (25)
- Hawkes, J. (25)
- Perez, J. (25)
- Seglar-Arroyo, M. (25)
- Arakawa, M. (24)
- Bernhard, S. (24)
- Hinton, J. A. (24)
- Iwasaki, H. (24)
- Katsuragawa, M. (24)
- Nakashima, S. (24)
- Naumann, C. L. (24)
- Raue, M. (24)
- Saito, S. (24)
- Sanchez, D. A. (24)
- Tsuji, N. (24)
- Zechlin, H. -S. (24)
- Carosi, A. (23)
- Chevalier, J. (23)
- Lypova, I. (23)
- Schussler, F. (23)
- Anton, Gisela (22)
- Bonnefoy, S. (22)
- Brucker, J. (22)
- Cheesebrough, A. (22)
- Jingo, M. (22)
- Kneiske, T. (22)
- Shilon, I. (22)
- Daniel, M. K. (21)
- Hadasch, D. (21)
- Liu, R. (21)
- Rauth, R. (21)
- Szostek, A. (21)
- Zajczyk, A. (21)
- Backes, Michael (20)
- Dickinson, H. J. (20)
- Malyshev, D. (20)
- Prokhorov, D. (20)
- Abramowski, A. (19)
- Balzer, A. (19)
- Bissaldi, E. (19)
- Buechele, M. (19)
- Caroff, S. (19)
- Conrad, J. (19)
- Emery, G. (19)
- Lennarz, D. (19)
- Ndiyavala, H. (19)
- Rinchiuso, L. (19)
- Shiningayamwe, K. (19)
- Spir-Jacob, M. (19)
- Tsirou, M. (19)
- Zorn, J. (19)
- Gate, F. (18)
- Glawion, D. (18)
- Lees, J. -P. (18)
- Steppa, Constantin Beverly (18)
- Decock, J. (17)
- Jogler, T. (17)
- Komin, Nu (17)
- Reichardt, I. (17)
- Sushch, I. (17)
- Bottcher, M. (16)
- Settimo, M. (16)
- Armand, C. (15)
- Aubert, P. (15)
- Berge, David (15)
- Bernhard, Sabrina (15)
- Bregeon, Johan (15)
- Bryan, Mark (15)
- Carr, J. (14)
- Goyal, A. (14)
- Oettl, S. (14)
- Petrucci, P-O (14)
- Prokhorov, D. A. (14)
- Arcaro, C. (13)
- Boettcher, M. (13)
- Cologna, G. (13)
- Holch, T. L. (13)
- Kruger, P. P. (13)
- Acero, F. (12)
- Andersson, T. (12)
- Anguener, E. O. (12)
- Chandra, S. (12)
- Dmytriiev, A. (12)
- Huber, D. (12)
- Lenain, J-P (12)
- Marti-Devesa, G. (12)
- Nedbal, D. (12)
- Ruiz-Velasco, E. (12)
- Senniappan, M. (12)
- Sinha, A. (12)
- Specovius, A. (12)
- Bylund, T. (11)
- Grondin, M-H (11)
- Noel, A. Priyana (11)
- Ernenwein, J-P (10)
- Gast, H. (10)
- Hague, J. D. (10)
- Holler, Markus (10)
- Jung-Richardt, I (10)
- Lypova, I (10)
- Marandon, V (10)
- Medina, M. C. (10)
- Oya, I (10)
- Poireau, V (10)
- Sahakian, V (10)
- Tavernet, J-P (10)
- Holch, Tim Lukas (9)
- Poireau, V. (9)
- Goering, D. (8)
- Kossakowski, R. (8)
- Ripken, J. (8)
- Vorobiov, S. (8)
- van der Walt, J. (8)
- Carr, John (7)
- Chand, T. (7)
- Chen, Andrew (7)
- Doroshenko, V (7)
- Drury, L. O'C. (7)
- Moore, C. (7)
- Naumann-Godo, M. (7)
- Sheidaei, F. (7)
- Shilon, I (7)
- Behera, B. (6)
- Coffaro, M. (6)
- Fallon, L. (6)
- Fussling, Matthias (6)
- Glueck, B. (6)
- Hampf, D. (6)
- Heinz, S. (6)
- Katz, Uli (6)
- Masbou, J. (6)
- Nguyen, N. (6)
- Reimer, Olaf (6)
- Richter, S. (6)
- Skilton, J. L. (6)
- Yoneda, H. (6)
- dewilt, P. (6)
- van Eldik, Christopher (6)
- Bochow, A. (5)
- Feijen, K. (5)
- Fukui, Y. (5)
- Katarzynski, Krzysztof (5)
- Kostunin, D. (5)
- Lu, C-C. (5)
- Mayer, Michael (5)
- Schutte, H. (5)
- Spiess, F. (5)
- de Wilt, P. (5)
- Antonelli, L. A. (4)
- Ashkar, H. (4)
- Aubert, Pierre (4)
- Barnard, Michelle (4)
- Barrio, J. A. (4)
- Bednarek, W. (4)
- Benbow, W. (4)
- Berger, K. (4)
- Bernlohr, K. (4)
- Biland, A. (4)
- Bouvier, A. (4)
- Breuhaus, M. (4)
- Bugaev, V. (4)
- Byrum, K. (4)
- Böttcher, Markus (4)
- Colin, P. (4)
- Contreras, J. L. (4)
- Cortina, J. (4)
- Covino, S. (4)
- Curylo, M. (4)
- Dazzi, F. (4)
- De Lotto, B. (4)
- Dei, C. (4)
- Doert, M. (4)
- Dorner, D. (4)
- Doro, M. (4)
- Edelstein, Wolfgang (4)
- Errando, M. (4)
- Finley, J. P. (4)
- Fortson, L. (4)
- Fruck, C. (4)
- Füßling, Matthias (4)
- Galante, N. (4)
- Goya, A. (4)
- Grondin, M-H. (4)
- Grube, J. (4)
- Grundmann, Matthias (4)
- Gyuk, G. (4)
- Hofmann, V. (4)
- Hrupec, D. (4)
- Hughes, G. (4)
- Jamrozy, Marek (4)
- Kaaret, P. (4)
- Krennrich, F. (4)
- Lenain, J-P. (4)
- Levy, C. (4)
- Lindfors, E. (4)
- Lombardi, S. (4)
- Lui, R. (4)
- Mackey, J. (4)
- Maier, G. (4)
- Majumdar, J. (4)
- Majumdar, P. (4)
- Maneva, G. (4)
- Mares, A. (4)
- Mariotti, M. (4)
- Martinez, M. (4)
- Martins, V. Barbosa (4)
- Mazin, D. (4)
- Mirzoyan, R. (4)
- Mitche, A. M. W. (4)
- Mukherjee, R. (4)
- Muller, J. (4)
- Ong, R. A. (4)
- Paneque, D. (4)
- Paoletti, R. (4)
- Paredes, J. M. (4)
- Pedaletti, G. (4)
- Perkins, J. S. (4)
- Persic, M. (4)
- Petrucci, P-O. (4)
- Prandini, E. (4)
- Remy, Q. (4)
- Rhode, W. (4)
- Rico, J. (4)
- Schellhas, Bernd (4)
- Schweizer, T. (4)
- Sillanpaa, A. (4)
- Sitarek, J. (4)
- Stamerra, A. (4)
- Takalo, L. (4)
- Tavernet, J-P. (4)
- Telezhinsky, Igor O. (4)
- Temnikov, P. (4)
- Teshima, M. (4)
- Torres, D. F. (4)
- Wakely, S. P. (4)
- Williams, D. A. (4)
- Adam, R. (3)
- Aleksic, J. (3)
- Aliu, E. (3)
- Antoranz, P. (3)
- Arlen, T. (3)
- Bamba, A. (3)
- Bastieri, D. (3)
- Becerra Gonzalez, J. (3)
- Beilicke, M. (3)
- Blanch Bigas, O. (3)
- Bonnoli, G. (3)
- Braun, I. (3)
- Bretz, T. (3)
- Buckley, J. H. (3)
- Buson, S. (3)
- C. (3)
- Carmona, E. (3)
- Cotter, G. (3)
- De Angelis, A. (3)
- Di Pierro, F. (3)
- Drury, L. O&rsquo (3)
- Einecke, S. (3)
- Falcone, A. (3)
- Federici, S. (3)
- Ferenc, D. (3)
- Font, L. (3)
- Forster, A. (3)
- Garrido, D. (3)
- Gaug, M. (3)
- Hadsch, D. (3)
- Hassan, T. (3)
- Hauser, M. (3)
- Hayashida, M. (3)
- Herrero, A. (3)
- Holder, J. (3)
- Huan, H. (3)
- Huber, B. (3)
- Humensky, T. B. (3)
- Jardin-Blicq, A. (3)
- Kieda, D. (3)
- Kraehenbuehl, T. (3)
- Krause, J. (3)
- Krawczynski, H. (3)
- Kubo, H. (3)
- Kushida, J. (3)
- Lelas, D. (3)
- Lopez, M. (3)
- Lorenz, E. (3)
- Lu, C-C (3)
- Mannheim, K. (3)
- Meucci, M. (3)
- Miranda, J. M. (3)
- Moralejo, A. (3)
- Niedzwiecki, A. (3)
- Nieto, D. (3)
- Nishijima, K. (3)
- Orito, R. (3)
- Orr, M. (3)
- Otte, A. N. (3)
- Paiano, S. (3)
- Puhlhofer, G. (3)
- Puljak, I. (3)
- Punch, Michael (3)
- Reyes, R. de Los (3)
- Reyes, R. de los (3)
- Ribo, M. (3)
- Safi-Harb, S. (3)
- Saggion, A. (3)
- Saito, K. (3)
- Saito, T. (3)
- Satalecka, K. (3)
- Scalzotto, V. (3)
- Scapin, V. (3)
- Schroedter, M. (3)
- Schultz, C. (3)
- Sembroski, G. H. (3)
- Shayduk, M. (3)
- Silk, J. (3)
- Skole, C. (3)
- Sobczynska, D. (3)
- Takami, H. (3)
- Tibolla, O. (3)
- Van Eldik, C. (3)
- Vankov, H. (3)
- Vialle, J. P. (3)
- Vogler, P. (3)
- Volk, H. J. (3)
- Weinstein, A. (3)
- Welsing, R. (3)
- Wornlein, A. (3)
- Zdziarski, A. (3)
- Zechlin, H-S (3)
- Zechlin, H-S. (3)
- de Almeida, U. Barres (3)
- de Ona Wilhelmi, E. (3)
- Abdalla, H. (2)
- Actis, M. (2)
- Agnetta, G. (2)
- Allan, D. (2)
- Allekotte, I. (2)
- Anguner, Ekrem Oǧuzhan (2)
- Aravantinos, A. (2)
- Armstrong, T. (2)
- Arnaldi, H. (2)
- Asano, K. (2)
- Asorey, H. G. (2)
- Aune, T. (2)
- Baehr, J. (2)
- Bais, A. (2)
- Baixeras, C. (2)
- Bajtlik, S. (2)
- Balis, D. (2)
- Barbier, C. (2)
- Barcelo, M. (2)
- Barnstedt, Jürgen (2)
- Basso, S. (2)
- Bauer, C. (2)
- Bechtol, K. C. (2)
- Becker, J. (2)
- Beckmann, Volker (2)
- Belluso, M. (2)
- Berdugo, J. (2)
- Bernardini, E. (2)
- Bernardino, T. (2)
- Billotta, S. (2)
- Bird, T. (2)
- Blake, S. (2)
- Bobkov, A. A. (2)
- Bogacz, L. (2)
- Bogdan, M. (2)
- Boix Gargallo, J. (2)
- Bonanno, G. (2)
- Bonardi, A. (2)
- Bonev, T. (2)
- Borkowski, Janett (2)
- Botner, O. (2)
- Bottani, A. (2)
- Bourgeat, M. (2)
- Boutonnet, C. (2)
- Brau-Nogue, S. (2)
- Briggs, M. S. (2)
- Brunetti, L. (2)
- Buchele, M. (2)
- Buehler, R. (2)
- Busetto, G. (2)
- Büchele, M. (2)
- Cailles, M. (2)
- Cameron, R. A. (2)
- Canestrari, R. (2)
- Cantu, S. (2)
- Carrigan, S. (2)
- Carton, P. H. (2)
- Casiraghi, M. (2)
- Catalano, O. (2)
- Cavazzani, S. (2)
- Cazaux, S. (2)
- Cheung, C. C. (2)
- Chiang, J. (2)
- Chikawa, M. (2)
- Cieslar, M. (2)
- Cillis, A. N. (2)
- Ciupik, L. (2)
- Clapson, A. C. (2)
- Cohen-Tanugi, J. (2)
- Collaboration, H. E. S. S. (2)
- Colombo, E. (2)
- Compin, M. (2)
- Conconi, P. (2)
- Connaughton, V. (2)
- Connolly, M. P. (2)
- Coppi, P. (2)
- Corona, P. (2)
- Corti, D. (2)
- Cossio, L. (2)
- Costantini, H. (2)
- Courty, B. (2)
- Couturier, S. (2)
- Croston, J. (2)
- Cui, W. (2)
- Cusumano, G. (2)
- De Los Reyes, R. (2)
- Deil, Christoph (2)
- Delagnes, E. (2)
- Deleglise, G. (2)
- Delgado, C. (2)
- Dewilt, P. (2)
- Diaz, C. (2)
- Dick, J. (2)
- Dickherber, R. (2)
- Dickinson, H. (2)
- Dicldnson, H. J. (2)
- Dimitrov, D. (2)
- Disset, G. (2)
- Djannati-Ata, A. (2)
- Dominguez, A. (2)
- Donath, Axel (2)
- Doroshenko, V. (2)
- Dravins, D. (2)
- Drury, L. (2)
- Dubois, F. (2)
- Dubois, R. (2)
- Dufour, C. (2)
- Duke, C. (2)
- Dumm, J. (2)
- Durand, D. (2)
- Edy, E. (2)
- Eleftheriadis, C. (2)
- Elles, S. (2)
- Elsaesser, D. (2)
- Emmanoulopoulos, D. (2)
- Enomoto, R. (2)
- Etchegoyen, A. (2)
- Farakos, K. (2)
- Fernandes, M. (2)
- Fillin-Martino, E. (2)
- Fink, D. (2)
- Finley, C. (2)
- Florin, D. (2)
- Foehr, C. (2)
- Fokitis, E. (2)
- Fonseca, M. V. (2)
- Fortin, P. (2)
- Fouque, N. (2)
- Fransson, C. (2)
- Fresnillo, L. (2)
- Fuessling, Matthias (2)
- Fujita, Y. (2)
- Fukazawa, Y. (2)
- Furniss, A. (2)
- Füssling, Matthias (2)
- Gadola, A. (2)
- Gaebele, W. (2)
- Gall, D. (2)
- Gallant, Y. (2)
- Garcia Lopez, R. J. (2)
- Garcia, B. (2)
- Garczarczyk, M. (2)
- Garrido, L. (2)
- Gascon, D. (2)
- Gaweda, J. (2)
- Geffroy, N. (2)
- Gerard, L. (2)
- Ghedina, A. (2)
- Ghigo, M. (2)
- Giarrusso, S. (2)
- Giavitto, Gianluca (2)
- Giro, E. (2)
- Giunti, L. (2)
- Glanzman, T. (2)
- Glicenstein, J. -F. (2)
- Godinovic, N. (2)
- Golev, V. (2)
- Gomez Berisso, M. (2)
- Gonzalez, A. (2)
- Gonzalez, F. (2)
- Gottschal, D. (2)
- Graciani, R. (2)
- Granena, F. (2)
- Granot, J. (2)
- Gredig, R. (2)
- Green, A. (2)
- Greenshaw, T. (2)
- Griffin, S. (2)
- Grimm, O. (2)
- Grygorczuk, J. (2)
- Guarino, V. (2)
- Gunji, S. (2)
- Haefner, D. (2)
- Hagiwara, R. (2)
- Hallgren, A. (2)
- Hanna, D. (2)
- Hara, S. (2)
- Hardcastle, M. J. (2)
- Haubold, T. (2)
- Hayakawa, T. (2)
- Heller, R. (2)
- Henri, Gilles (2)
- Hoffmann, D. (2)
- Hofmann, Ch. (2)
- Hofmann, Werner (2)
- Hose, J. (2)
- Huet, J. -M. (2)
- Ibarra, A. (2)
- Illa, J. M. (2)
- Inoue, S. (2)
- Inoue, Y. (2)
- Ioka, K. (2)
- Jablonski, C. (2)
- Jankowsky, Felix (2)
- Jean, P. (2)
- Jennings, G. (2)
- Kabuki, S. (2)
- Kakuwa, J. (2)
- Kalkuhl, C. (2)
- Kankanyan, R. (2)
- Karastergiou, A. (2)
- Karczewski, M. (2)
- Karkar, S. (2)
- Karlsson, N. (2)
- Katagiri, H. (2)
- Kawanaka, N. (2)
- Kendziorra, E. (2)
- Kertzman, M. (2)
- Khassen, Y. (2)
- Kifune, T. (2)
- Kihm, T. (2)
- Knoedlseder, J. (2)
- Kodani, K. (2)
- Koeck, F. (2)
- Kohri, K. (2)
- Kokkotas, K. (2)
- Komin, N. (2)
- Konno, Y. (2)
- Kostka, P. (2)
- Kowal, G. (2)
- Koziol, J. (2)
- Kreter, M. (2)
- Kretzschmann, A. (2)
- Kudryavtsev, V. A. (2)
- La Barbera, A. (2)
- La Parola, V. (2)
- La Rosa, G. (2)
- Lande, J. (2)
- Lang, M. J. (2)
- Laporte, P. (2)
- Lavalley, C. (2)
- Le Flour, T. (2)
- Le Padellec, A. (2)
- Leser, E. (2)
- Lessio, L. (2)
- Lieunard, B. (2)
- Liolios, A. (2)
- Lopez-Oramas, A. (2)
- Lubinski, P. (2)
- Luz, O. (2)
- Lyard, E. (2)
- Maccarone, M. C. (2)
- Makariev, M. (2)
- Maltezos, S. (2)
- Manalaysay, A. (2)
- Mangano, A. (2)
- Manigot, P. (2)
- Maraschi, L. (2)
- Markoff, S. (2)
- Martinez, G. (2)
- Mastichiadis, A. (2)
- Matsumoto, H. (2)
- Mattiazzo, S. (2)
- Mayer, Markus (2)
- McCann, A. (2)
- McCubbin, N. (2)
- McHardy, I. (2)
- Medina, C. (2)
- Melkumyan, D. (2)
- Mertsch, P. (2)
- Meyer, Manuel (2)
- Michalowski, J. (2)
- Micolon, P. (2)
- Mineo, T. (2)
- Mirabal, N. (2)
- Mirabel, F. (2)
- Mizuno, T. (2)
- Moal, B. (2)
- Molinari, E. (2)
- Monteiro, I. (2)
- Morello, C. (2)
- Mori, K. (2)
- Moriarty, P. (2)
- Moroni, P. G. Prada (2)
- Mottez, F. (2)
- Munar, P. (2)
- Munar-Adrover, P. (2)
- Muraishi, H. (2)
- Murase, K. (2)
- Nagataki, S. (2)
- Naito, T. (2)
- Nakamori, T. (2)
- Nakayama, K. (2)
- Naumann, D. (2)
- Nayman, P. (2)
- Nekrassov, D. (2)
- Neustroev, V. (2)
- Nikolaidis, A. (2)
- Nilsson, K. (2)
- Nowak, N. (2)
- Ohira, Y. (2)
- Ohishi, M. (2)
- Okuda, T. (2)
- Okumura, A. (2)
- Ovcharov, E. (2)
- Ozieblo, A. (2)
- Pallota, J. (2)
- Papyan, G. (2)
- Pareschi, G. (2)
- Park, N. (2)
- Pelat, D. (2)
- Pichel, A. (2)
- Platos, L. (2)
- Platzer, R. (2)
- Pogosyan, L. (2)
- Pohl, M. (2)
- Pohl, Martin (2)
- Pojmanski, G. (2)
- Ponz, J. D. (2)
- Potter, W. (2)
- Preece, R. (2)
- Prester, Dijana Dominis (2)
- Quinn, J. (2)
- Ragan, K. (2)
- Rando, R. (2)
- Rataj, M. (2)
- Reimann, O. (2)
- Renner, S. (2)
- Reyes, L. C. (2)
- Reynolds, P. T. (2)
- Ribordy, M. (2)
- Ringegni, P. (2)
- Rivoire, S. (2)
- Roache, E. (2)
- Roeser, U. (2)
- Romano, Patrizia (2)
- Romero, G. E. (2)
- Rousselle, J. (2)
- Rovero, A. C. (2)
- Rowel, G. (2)
- Roy, F. (2)
- Royer, S. (2)
- Rudolph, Michael (2)
- Ruppel, J. (2)
- Russo, F. (2)
- Ryde, F. (2)
- Sacco, B. (2)
- Sailer, S. (2)
- Sakaki, N. (2)
- Salini, A. (2)
- Sanchez, F. (2)
- Sandig, V. (2)
- Sano, H. (2)
- Santos, E. M. (2)
- Sanuy, A. (2)
- Sapozhnikov, L. (2)
- Sarkar, S. (2)
- Scarcioffolo, M. (2)
- Schandri, M. (2)
- Schanz, T. (2)
- Schlag, Peter M. (2)
- Schlenstedt, S. (2)
- Schmidt, T. (2)
- Schmoll, J. (2)
- Schuessler, Fabian (2)
- Schultze, J. (2)
- Schutte, H. M. (2)
- Seweryn, K. (2)
- Shellard, R. C. (2)
- Shibata, T. (2)
- Shore, S. N. (2)
- Sikora, M. (2)
- Smith, N. (2)
- Spiga, D. (2)
- Spyrou, S. (2)
- Stamatescu, V. (2)
- Stegmann, Christian Michael (2)
- Steiner, S. (2)
- Stergioulas, N. (2)
- Sternberger, R. (2)
- Stodulski, M. (2)
- Straumann, U. (2)
- Strauss, M. (2)
- Suarez, A. (2)
- Suchenek, M. (2)
- Sugawara, R. (2)
- Sun, S. (2)
- Supanitsky, A. D. (2)
- Suric, T. (2)
- Sushch, I (2)
- Sutcliffe, P. (2)
- Szanecki, M. (2)
- Szepieniec, T. (2)
- Tagliaferri, G. (2)
- Tajima, H. (2)
- Takahashi, H. (2)
- Takahashi, K. (2)
- Tanaka, M. (2)
- Tavani, M. (2)
- Tavecchio, F. (2)
- Tejedor, L. A. (2)
- Tenzer, C. (2)
- Terada, Y. (2)
- Tescaro, D. (2)
- Testa, V. (2)
- Theiling, M. (2)
- Tokanai, F. (2)
- Tokarz, M. (2)
- Toma, K. (2)
- Torii, K. (2)
- Tosti, G. (2)
- Totani, T. (2)
- Treves, A. (2)
- Vallania, P. (2)
- Vallejo, G. (2)
- Van Soelen, B. (2)
- Varlotta, A. (2)
- Vassiliev, V. V. (2)
- Vegas, I. (2)
- Venters, C. (2)
- Vercellone, S. (2)
- Veyssiere, C. (2)
- Videla, M. (2)
- Vincent, S. (2)
- Vlahakis, N. (2)
- Vlahos, L. (2)
- Vollhardt, A. (2)
- Wagner, S. (2)
- Walter, R. (2)
- Warwick, R. (2)
- Wawer, P. (2)
- Wawrzaszek, R. (2)
- Webb, N. (2)
- Wegner, P. (2)
- Wetteskind, H. (2)
- Wischnewski, R. (2)
- Wisniewski, L. (2)
- Wood, M. (2)
- Xiong, Q. (2)
- Yamamoto, H. (2)
- Yamamoto, T. (2)
- Yamazaki, R. (2)
- Yanagita, S. (2)
- Yoshida, A. (2)
- Yoshida, T. (2)
- Yoshiike, S. (2)
- Yoshikoshi, T. (2)
- Zietara, K. (2)
- Ziolkowski, P. (2)
- Zitelli, V. (2)
- Zitzer, B. (2)
- Zychowski, P. (2)
- de Souza, V. (2)
- Acharya, B. S. (1)
- Acosta, M. Vazquez (1)
- Aghajani, T. (1)
- Aguilar, J. (1)
- Ahnen, M. L. (1)
- Ait Benkhali, Faical (1)
- Ajello, M. (1)
- Albuquerque, I. F. M. (1)
- Alcubierre, M. (1)
- Alfaro, R. (1)
- Allafort, A. J. (1)
- Amato, E. (1)
- Anderson, J. (1)
- Anguenee, E. O. (1)
- Anguener, O. (1)
- Anibas, M. Paz (1)
- Ansoldi, S. (1)
- Antico, F. (1)
- Archambault, S. (1)
- Arrabito, L. (1)
- Artmann, S. (1)
- Ashton, T. (1)
- Awane, Y. (1)
- Awilhelmi, E. de Ona (1)
- Axelsson, M. (1)
- Baba, H. (1)
- Babic, A. (1)
- Babie, A. (1)
- Baby, N. (1)
- Baghmanyan, V. (1)
- Balbo, M. (1)
- Balkowski, C. (1)
- Bandiera, R. (1)
- Banerjee, B. (1)
- Bangale, P. (1)
- Barber, A. (1)
- Barnacka, A. (1)
- Barres de Almeida, U. (1)
- Basili, A. (1)
- Baushev, Anton N. (1)
- Becker-Tjus, J. (1)
- Benallou, M. (1)
- Benkhali, Faiçal Ait (1)
- Berdyugin, A. (1)
- Bernard, F. (1)
- Bernlorhr, K. (1)
- Bernlöhr, Konrad (1)
- Berti, A. (1)
- Bhat, N. (1)
- Bhattacharyya, S. (1)
- Bi, B. (1)
- Biasuzzi, B. (1)
- Bigongiari, C. (1)
- Bilchele, M. (1)
- Bird, R. (1)
- Bitossi, M. (1)
- Blanch, O. (1)
- Blasi, P. (1)
- Boccone, V. (1)
- Bock, R. K. (1)
- Bogart, J. (1)
- Boller, A. (1)
- Bolmont, Julien (1)
- Bonifacio, P. (1)
- Borgland, A. W. (1)
- Borracci, F. (1)
- Bose, R. (1)
- Bottcher, Markus (1)
- Bouchet, L. (1)
- Bradbury, S. M. (1)
- Bringmann, T. (1)
- Brook, P. (1)
- Btichele, M. (1)
- Buanes, T. (1)
- Buckley, H. (1)
- Buesching, I. (1)
- Bulgarelli, A. (1)
- Bylund, Tomas (1)
- Böttcher, M. (1)
- Calome, J. (1)
- Camprecios, J. (1)
- Canellas, A. (1)
- Cannon, A. (1)
- Capalbi, M. (1)
- Capasso, Massimo (1)
- Cara, M. (1)
- Caraveo, P. A. (1)
- Carosi, R. (1)
- Casadio, C. (1)
- Casandjian, J. M. (1)
- Castarede, H. (1)
- Cerruti, B. (1)
- Cerruti, Matteo (1)
- Cesarini, A. (1)
- Chabanne, E. (1)
- Chadwick, M. (1)
- Chadwick, P. M. (1)
- Chakraborty, Nachiketa (1)
- Champion, C. (1)
- Charbonnier, A. (1)
- Chatraborty, N. (1)
- Chatterjee, A. (1)
- Chen, X. (1)
- Chiappetti, L. (1)
- Chitnis, V. R. (1)
- Chollet, F. (1)
- Chudoba, J. (1)
- Ciesielska, M. (1)
- Cirelli, M. (1)
- Clerc, C. (1)
- Coignet, G. (1)
- Colome, J. (1)
- Colonges, S. (1)
- Conforti, V. (1)
- Corlier, M. (1)
- Corpace, O. (1)
- Crimi, G. (1)
- Criswell, S. J. (1)
- Cumani, P. (1)
- Da Vela, P. (1)
- Dafonseca, M. (1)
- Dal Pino, E. M. de Gouveia (1)
- Dale, O. (1)
- Daniel, M. (1)
- Daniel, Michael K. (1)
- Darling, J. (1)
- Davids, I. (1)
- Davids, Isak (1)
- Davies, F. (1)
- Davies, J. (1)
- De Caprio, V. (1)
- De Cea del Pozo, E. (1)
- De Frondat, F. (1)
- De La Vega, G. (1)
- De La Vega, G. A. (1)
- De Luca, A. (1)
- De Naurois, M. (1)
- DeWilt, P. (1)
- Deangelis, A. (1)
- Decerprit, B. (1)
- Decerprit, G. (1)
- Decock, G. (1)
- Delgado Mendez, C. (1)
- Della Volpe, D. (1)
- Demange, P. (1)
- Depaola, G. (1)
- Dettlaff, A. (1)
- Dettlaff, T. (1)
- Di Paola, A. (1)
- Di Paolo, A. (1)
- Diago Ortega, A. (1)
- Diez-Blanco, V. (1)
- Digel, S. (1)
- Digel, S. W. (1)
- Djannati-Atai, Arache (1)
- Djannati-Ataie, A. (1)
- Dohmke, M. (1)
- Doi, A. (1)
- Domainko, Wilfried (1)
- Donat, A. (1)
- Doroshenko, Victor (1)
- Dournaux, J-L. (1)
- Dournaux, J. -L. (1)
- Drake, G. (1)
- Dubus, Guillaume (1)
- Duffy, C. (1)
- Dumas, D. (1)
- Dutson, Kate (1)
- Ebr, J. (1)
- Edwards, P. G. (1)
- Eichhorn, F. (1)
- Eisenacher Glawion, Dorit (1)
- Engelhaupt, D. (1)
- Engelkemeier, M. (1)
- Enokiya, R. (1)
- Er, M. Kie Ff (1)
- Ernenwein, J-P. (1)
- Ernenwein, J-p (1)
- Ert, Ff (1)
- Eschbach, Stefan (1)
- Evans, P. (1)
- Falcone, A. D. (1)
- Fantinel, D. (1)
- Fasola, G. (1)
- Favill, B. (1)
- Fede, E. (1)
- Fegan, Stuart (1)
- Feng, Q. (1)
- Fernandesl, M. V. (1)
- Fernandez-Barra, A. (1)
- Ferrando, P. (1)
- Fesquet, M. (1)
- Fiaon, A. (1)
- Fiasson, Armand (1)
- Fidalgo, D. (1)
- Finke, J. (1)
- Finnegan, G. (1)
- Fiorini, M. (1)
- Firpo Curcoll, R. (1)
- Firpo, R. (1)
- Flores, H. (1)
- Focke, W. (1)
- Foester, A. (1)
- Font, Ll. (1)
- Fontana, A. (1)
- Fornasa, M. (1)
- Franckowiak, A. (1)
- Fraser, G. (1)
- Fraser, G. W. (1)
- Frei, R. (1)
- Ftifiling, M. (1)
- Fukuda, T. (1)
- Fukuyama, T. (1)
- Fuling, M. (1)
- Funk, Sebastian (1)
- Gabici, Stefano (1)
- Gabriele, R. (1)
- Galindo, D. (1)
- Gamez-Garcia, J. (1)
- Garcia Lopez, R. (1)
- Garcia, J. R. (1)
- Gardiol, D. (1)
- Gasq, C. (1)
- Gebremedhin, L. (1)
- Gerbig, D. (1)
- Ghag, C. (1)
- Giammaria, P. (1)
- Gianakaki, E. (1)
- Giannakaki, E. (1)
- Gianotti, F. (1)
- Gika, V. (1)
- Gillanders, G. H. (1)
- Giommi, P. (1)
- Giordano, F. (1)
- Giovannini, G. (1)
- Girard, N. (1)
- Giroletti, M. (1)
- Giubilato, P. (1)
- Giuliani, A. (1)
- Glawion, D. Eisenacher (1)
- Glicenstein, Jean-François (1)
- Gochna, M. (1)
- Godambe, S. (1)
- Godinovie, N. (1)
- Goeing, D. (1)
- Gomez-Ortega, J. (1)
- Gonzalez Munoz, A. (1)
- Gonzalez, J. Becerra (1)
- Gonzalez, M. M. (1)
- Gora, D. (1)
- Goret, P. (1)
- Gothe, K. S. (1)
- Gottschall, Daniel (1)
- Goudelis, A. (1)
- Gougerot, M. (1)
- Grandi, P. (1)
- Grasseau, G. (1)
- Gregoire, T. (1)
- Griffiths, S. (1)
- Griffiths, S. T. (1)
- Grondin, Marie-Hélène (1)
- Gruenewald, S. (1)
- Gruev, V. (1)
- Guberman, D. (1)
- Guglielmi, L. (1)
- Guillemot, L. (1)
- Guilloux, F. (1)
- Hada, K. (1)
- Hadasch, Daniela (1)
- Hahn, A. (1)
- Hakansson, N. (1)
- Hamer Heras, N. (1)
- Hardee, P. (1)
- Harris, D. E. (1)
- Hatanaka, K. (1)
- Haupt, A. (1)
- Henault, F. (1)
- Hermel, R. (1)
- Herrera, J. (1)
- Hervet, Olivier (1)
- Hidaka, N. (1)
- Hildebrand, D. (1)
- Hinton, J. (1)
- Hoehne-Moench, D. (1)
- Hoffmann, A. (1)
- Holler, Maraike (1)
- Holler, Margitte (1)
- Horan, D. (1)
- Horbe, M. (1)
- Horns, Dieter (1)
- Horville, D. (1)
- Houles, J. (1)
- Hrabovsky, M. (1)
- Hui, C. M. (1)
- Hultquist, K. (1)
- Huovelin, J. (1)
- Huppert, J. -F. (1)
- Impiombato, D. (1)
- Incorvaia, S. (1)
- Ingjald, J. (1)
- Ishio, K. (1)
- Ismailova, E. (1)
- Ivascenko, Alex (1)
- Jankowsky, David (1)
- Jeanney, C. (1)
- Jensen, H. (1)
- Jimenez, J. J. (1)
- Jogler, Tobias (1)
- Johnson, T. (1)
- Johnston, S. (1)
- Joshi, V. (1)
- Journet, L. (1)
- Jouvin, Lea (1)
- Juffroy, C. (1)
- Jung-Richardt, Ira (1)
- Jung-Richardt, O. (1)
- Junor, W. (1)
- Kadler, M. (1)
- Kaercher, K. (1)
- Kagaya, M. (1)
- Kapala, M. (1)
- Kasai, E. (1)
- Kasperek, Aci. (1)
- Kasperek, J. (1)
- Kastana, D. (1)
- Kastendieckl, M. A. (1)
- Kataoka, J. (1)
- Katarzyfiski, K. (1)
- Katarzyński, Krzysztof (1)
- Katsuta, J. (1)
- Kedziora, B. (1)
- Kellner-Leidel, B. (1)
- Kelly, H. (1)
- Keogh, D. (1)
- Kerr, M. (1)
- Kieda, D. B. (1)
- Kiefeer, M. (1)
- Kino, M. (1)
- Kirillova, I. (1)
- Kishimoto, T. (1)
- Kitamoto, K. (1)
- Klochkov, Dmitry (1)
- Kluiniak, W. (1)
- Knapic, C. (1)
- Knapp, J. (1)
- Knapp, J. w (1)
- Knappy, A. R. (1)
- Kneiske, Tanja (1)
- Kocot, J. (1)
- Koehne, J. -H. (1)
- Koeppel, H. (1)
- Komin, Nukri (1)
- Kominis, I. (1)
- Konno, R. (1)
- Konopelko, A. (1)
- Korohoda, P. (1)
- Koss, G. (1)
- Kotula, J. (1)
- Koul, R. (1)
- Koyama, S. (1)
- Kraus, Michael (1)
- Krawzcynski, H. (1)
- Krepps, A. (1)
- Krobot, R. (1)
- Krtiger, P. P. (1)
- Krueger, P. (1)
- Kruer, P. P. (1)
- Kruger, R. R. (1)
- Krüger, P. P. (1)
- Kuvezdie, D. (1)
- Kuznetsov, A. (1)
- La Barbera, N. (1)
- La Palombara, N. (1)
- Lacombe, K. (1)
- Languignon, D. (1)
- Lapington, J. (1)
- Lau, Jeanie (1)
- LeBohec, S. (1)
- Lee, N. P. (1)
- Lee, S. -H. (1)
- Lee, W. H. (1)
- Lees, J-P (1)
- Lees, S. Rosier (1)
- Leigui de Oliveira, M. A. (1)
- Lenain, J. - P. (1)
- Lenain, J. P. (1)
- Leonardo, E. (1)
- Leopold, D. J. (1)
- Lerch, T. (1)
- Lipniacka, A. (1)
- Lockart, H. (1)
- Lohse, Thomas (1)
- Longo, F. (1)
- Lopez, A. (1)
- Lopez, R. J. Garcia (1)
- Lopez, R. de los Reyes (1)
- Lorca, A. (1)
- Lucarelli, F. (1)
- Ludwin, J. (1)
- Luedecke, H. (1)
- Luque-Escamilla, P. L. (1)
- Lustermann, W. (1)
- Ly, C. (1)
- Lypova, Iryna (1)
- Maccarone, T. (1)
- Maccarone, T. J. (1)
- Madejski, G. M. (1)
- Madhavan, A. (1)
- Madhavan, A. S. (1)
- Madrid, J. (1)
- Magill, J. D. (1)
- Mahabir, M. (1)
- Malaguti, G. (1)
- Malkiewicz, P. (1)
- Mana, C. (1)
- Mancilla, A. (1)
- Mandat, D. (1)
- Manganaro, M. (1)
- Mankuzhiyil, N. (1)
- Manthos, I. (1)
- Maragos, N. (1)
- Marandon, Vincent (1)
- Marchegiani, P. (1)
- Marin, J. (1)
- Marisaldi, M. (1)
- Marszalek, A. (1)
- Martens, C. (1)
- Marti, J. (1)
- Martin, J-M. (1)
- Martin, P. (1)
- Martinez, F. (1)
- Massaro, F. (1)
- Masserot, A. (1)
- Mathieu, A. (1)
- Mattana, F. (1)
- Maurin, D. (1)
- Maxfield, S. (1)
- Maya, J. (1)
- Mbarubucyeye, J. Damascene (1)
- Mc Comb, L. (1)
- McArthur, S. (1)
- McConville, W. (1)
- McKay, R. (1)
- Meintjes, Petrus Johannes (1)
- Melioli, C. (1)
- Mendes, A. (1)
- Menzel, U. (1)
- Mereghetti, S. (1)
- Meyer, Manuela (1)
- Mihailidis, A. (1)
- Minev, M. (1)
- Minuti, M. (1)
- Mitchell, A. (1)
- Miyamoto, H. (1)
- Mognet, I. (1)
- Mohamed, Mmahmoud (1)
- Moldon, J. (1)
- Molinaro, M. (1)
- Montanari, A. (1)
- Montaruli, T. (1)
- Moore, P. (1)
- Moralejo Olaizola, A. (1)
- Mordalska, M. (1)
- Moreno, V. (1)
- Moretti, E. (1)
- Morris, P. (1)
- Motta, G. (1)
- Moudden, Y. (1)
- Mrusek, I. (1)
- Mundell, C. G. (1)
- Murphy, A. (1)
- Murphy, A. Stj. (1)
- Nagai, H. (1)
- Nakajima, D. (1)
- Nakashima, K. (1)
- Nayerhoda, A. (1)
- Neise, D. (1)
- Nellen, L. (1)
- Neyroud, N. (1)
- Nicastro, L. (1)
- Nicholas, B. (1)
- Nicolau-Kuklinski, J. (1)
- Noda, K. (1)
- Nogues, L. (1)
- Nolan, S. (1)
- Northrop, R. (1)
- Nosek, D. (1)
- Nozato, A. (1)
- Nunez, P. D. (1)
- O'Brien, P. (1)
- O'Brien, P. T. (1)
- O'Brien, Patrick (1)
- Ochoa, I. (1)
- Odaka, Hirokazu (1)
- Ohka, H. (1)
- Ohm, Stefan (1)
- Ohoka, H. (1)
- Ojha, R. (1)
- Olive, J. -F. (1)
- Olivera-Nieto, L. (1)
- Olivetto, C. (1)
- Osborne, J. (1)
- Osborne, J. P. (1)
- Otero, L. (1)
- Otero, L. A. (1)
- Ott, S. (1)
- Otte, N. (1)
- Ottl, S. (1)
- Padilla, L. (1)
- Padovani, Marco (1)
- Paillot, D. (1)
- Paizis, A. (1)
- Palacio, J. (1)
- Palanque, S. (1)
- Palatka, M. (1)
- Panagiotidis, K. (1)
- Panazol, J. -L. (1)
- Panazol, J. L. (1)
- Panci, P. (1)
- Panny, S. (1)
- Papayannis, Alexandros (1)
- Pardo, S. (1)
- Paredes-Fortuny, X. (1)
- Parks, G. (1)
- Parraud, J. -M. (1)
- Parsons, D. (1)
- Partini, S. (1)
- Pasanen, M. (1)
- Pauss, F. (1)
- Pech, M. (1)
- Peixoto, C. J. Todero (1)
- Pelassa, V. (1)
- Pepato, A. (1)
- Peresano, M. (1)
- Perez, M. D. C. (1)
- Perez-Torres, M. A. (1)
- Perlman, E. S. (1)
- Peron, G. (1)
- Perri, L. (1)
- Peruzzo, L. (1)
- Petrucci, P. -O (1)
- Petrucci, P. O. (1)
- Pie, Q. (1)
- Piechocki, W. (1)
- Pilia, M. (1)
- Pivato, G. (1)
- Pizzolato, F. (1)
- Pletsch, H. (1)
- Pochon, J. (1)
- Poon, Helen (1)
- Poona, H. (1)
- Popkow, A. (1)
- Poutanen, J. (1)
- Prada, F. (1)
- Prast, J. (1)
- Prester, D. Dominis (1)
- Priyana Noel, A. (1)
- Profeti, F. (1)
- Prokhorov, Dmitry (1)
- Prokoph, Heike (1)
- Prouza, M. (1)
- Proyetti, M. (1)
- Ptffilhofer, G. (1)
- Puehlhofer, Gerd (1)
- Puelhofer, G. (1)
- Puerto-Gimenez, I. (1)
- Pyziol, R. (1)
- Pühlhofer, G. (1)
- Quel, E. (1)
- Quel, E. J. (1)
- Quirrenbach, Andreas (1)
- Racero, E. (1)
- Rajda, P. (1)
- Rajda, P. J. (1)
- Rajotte, J. (1)
- Ramazani, V. Fallah (1)
- Ramon, P. (1)
- Rannot, R. C. (1)
- Rayner, S. M. (1)
- Reardon, P. (1)
- Reichherzer, P. (1)
- Reimann, C. (1)
- Reimer, Anita (1)
- Reinthal, R. (1)
- Reitberger, K. (1)
- Reville, B. (1)
- Reymond, J. -M. (1)
- Richards, G. T. (1)
- Richer, M. G. (1)
- Ridky, J. (1)
- Rieger, Frank (1)
- Ristori, P. (1)
- Ristori, P. R. (1)
- Riti, M. (1)
- Riviere, A. (1)
- Roberts, O. J. (1)
- Rodriguez, S. (1)
- Rohlfs, R. (1)
- Rojas, G. (1)
- Romaszkan, W. (1)
- Romoli, Carlo (1)
- Rose, H. J. (1)
- Rosen, S. (1)
- Rosillo, M. Nievas (1)
- Ross, D. (1)
- Rouaix, G. (1)
- Rousselle, S. (1)
- Ruegamer, S. (1)
- Rulten, C. (1)
- Rupinski, M. (1)
- Saemann, E. O. (1)
- Safiakian, V. (1)
- Saito, T. Y. (1)
- Saito, Y. (1)
- Sakonaka, R. (1)
- Sala, F. (1)
- Salazar, E. (1)
- Salek, David (1)
- Salvati, M. (1)
- Sanchez Conde, M. A. (1)
- Sanchez, David A. (1)
- Sanchez-Conde, M. (1)
- Sandaker, H. (1)
- Sandoval, A. (1)
- Sant'Ambrogio, E. (1)
- Sartore, N. (1)
- Sasaki, H. (1)
- Sasaki, Manami (1)
- Sawada, M. (1)
- Scalici, M. (1)
- Schafer, J. (1)
- Schlickeiser, Reinhard (1)
- Schoeck, F. M. (1)
- Schovanek, P. (1)
- Schroeder, S. (1)
- Schtissler, F. (1)
- Schulz, Andreas (1)
- Schure, K. (1)
- Schwab, T. (1)
- Schwarz, J. (1)
- Schüssler, F. (1)
- Segreto, A. (1)
- Seiradakis, J. (1)
- Seiradakis, J. -H. (1)
- Selmane, S. (1)
- Sentuerk, G. D. (1)
- Serpico, P. (1)
- Shannon, R. M. (1)
- Sharma, M. (1)
- Shi, J. (1)
- Shibuya, A. (1)
- Shum, E. (1)
- Sidoli, L. (1)
- Sidz, M. (1)
- Sieiro, J. (1)
- Singh, B. B. (1)
- Smareglia, R. (1)
- Smith, A. (1)
- Smith, A. W. (1)
- Smith, D. (1)
- Smith, J. (1)
- So, H. (1)
- Sobczynskall, D. (1)
- Sofo Haro, M. (1)
- Sottile, G. (1)
- Sowinski, M. (1)
- Spanie, F. (1)
- Spanier, Felix (1)
- Spencer, S. (1)
- Spiro, S. (1)
- Starling, R. (1)
- Starling, R. L. C. (1)
- Staszak, D. (1)
- Stawarz, Lukasz (1)
- Steele, I. A. (1)
- Stegmann, C. (1)
- Steinke, B. (1)
- Steinmassl, S. (1)
- Steppa, C. (1)
- Sterzel, M. (1)
- Stevens, J. (1)
- Storz, J. (1)
- Strah, N. (1)
- Strazzeri, E. (1)
- Stringhetti, L. (1)
- Stroh, M. (1)
- Strzys, M. (1)
- Stycz, Kornelia (1)
- Sulanke, K. -H. (1)
- Sulanke, K. H. (1)
- Sun, L. (1)
- Surie, T. (1)
- Sykes, J. (1)
- Szymkowiak, A. (1)
- Talbot, C. (1)
- Talbot, R. G. (1)
- Tam, P. H. (1)
- Tam, P. H. T. (1)
- Tammi, J. (1)
- Tanaka, S. (1)
- Tanaka, Y. (1)
- Tanimori, T. (1)
- Taoso, M. (1)
- Tasan, J. (1)
- Tchernin, C. (1)
- Terzic, T. (1)
- Terzie, T. (1)
- Tesic, G. (1)
- Tezier, D. (1)
- Thibadeau, S. (1)
- Thom, M. (1)
- Thuermann, D. (1)
- Tibaldo, Luigi (1)
- Tiengo, A. (1)
- Tjus, Julia Becker (1)
- Tluczykont, Martin (1)
- Todero Peixoto, C. J. (1)
- Tomankova, L. (1)
- Tornikoski, M. (1)
- Torres, M. (1)
- Torres-Alla, N. (1)
- Toussenel, C. (1)
- Toussenel, F. (1)
- Tovmassian, G. (1)
- Travnicek, P. (1)
- Tridon, D. Borla (1)
- Trifoglio, M. (1)
- Troyano, I. (1)
- Tsinganos, K. (1)
- Tucci, J. V. (1)
- Tyler, J. (1)
- Ueno, H. (1)
- Umehara, K. (1)
- Uner, E. O. Ang (1)
- Upadhya, S. S. (1)
- Usher, T. (1)
- Uslenghi, M. (1)
- Valdes-Galicia, J. F. (1)
- Van Rensburg, C. (1)
- Van der Walt, D. J. (1)
- Vandenbroucke, J. (1)
- Vandenbrouke, J. (1)
- Vanderwalt, J. (1)
- Vanzo, G. (1)
- Vasileiadis, Georges (1)
- Vassiliev, V. (1)
- Veberic, D. (1)
- Venter, L. (1)
- Vergani, S. (1)
- Vink, Jacco (1)
- Vivier, M. (1)
- Voelk, Heinrich J. (1)
- Vok, H. J. (1)
- Von Gunten, H. P. (1)
- Vovk, I. (1)
- Vuerli, C. (1)
- Vuillaume, Thomas (1)
- Waegebaert, V. (1)
- Wagner, B. (1)
- Wagner, R. (1)
- Wagner, R. G. (1)
- Wagner, Stefan J. (1)
- Walker, R. C. (1)
- Walter, P. (1)
- Walther, T. (1)
- Ward, J. E. (1)
- Warda, K. (1)
- Watson, J. (1)
- Weekes, T. C. (1)
- Werner, F. (1)
- Werner, M. (1)
- Wierzcholska, Alicja (1)
- Wiesand, S. (1)
- Wilkinson, M. (1)
- Wilkinson, M. I. (1)
- Will, M. (1)
- Willingale, R. (1)
- Winde, M. (1)
- Winiarski, K. (1)
- Wolczko, A. (1)
- Wong, Yu Wun (1)
- Wood, D. L. (1)
- Wouters, Denis (1)
- Wrnlein, A. (1)
- Wu, M. H. (1)
- Yadav, K. K. (1)
- Yamaoka, K. (1)
- Yebras, J. M. (1)
- Yelos, D. (1)
- Yoffo, B. (1)
- Yonetani, M. (1)
- Yusafzai, A. (1)
- Zabalza, Victor (1)
- Zacharias, Michael (1)
- Zagdanski, A. (1)
- Zandanel, F. (1)
- Zargaryan, D. (1)
- Zarie, D. (1)
- Zech, Andreas (1)
- Zechlin, H. S. (1)
- Zhao, A. (1)
- Zhou, X. (1)
- Zhu, S. J. (1)
- Ziolkowski, J. (1)
- Zouari, S. (1)
- Zurbach, C. (1)
- Zywucka, Natalia (1)
- Zywuckan, N. (1)
- de Cea del Pozo, E. (1)
- de Clairfontaine, G. Fichet (1)
- de Gouveia Dal Pino, E. M. (1)
- de Jager, O. (1)
- de Jager, O. C. (1)
- de Lavergne, M. de Bony (1)
- de Mello Neto, J. R. T. (1)
- de Naurois, Mathieu (1)
- de Oliveira, Y. (1)
- de Palma, F. (1)
- de la Calle Perez, I. (1)
- de la Calle, I. (1)
- van Der Walt, D. J. (1)
- van Driel, W. (1)
- van Edik, C. (1)
- van Soelen, Brian (1)
- van der Wale, D. J. (1)
- van der Walt, Johan (1)
- von Gunten, H. P. (1)
Year of publication
Is part of the Bibliography
- yes (76)
Keywords
- gamma rays: general (23)
- radiation mechanisms: non-thermal (20)
- ISM: supernova remnants (13)
- gamma rays: galaxies (13)
- galaxies: active (12)
- cosmic rays (10)
- acceleration of particles (8)
- astroparticle physics (6)
- gamma rays: stars (6)
- ISM: clouds (5)
HESS observations of the binary system PSR B1259-63/LS 2883 around the 2010/2011 periastron passage
(2013)
Abramowski, Attila ; Acero, F. ; Aharonian, Felix A. ; Akhperjanian, A. G. ; Anton, Gisela ; Balenderan, Shangkari ; Balzer, Arnim ; Barnacka, Anna ; Becherini, Yvonne ; Tjus, J. Becker ; Bernlöhr, K. ; Birsin, E. ; Biteau, Jonathan ; Boisson, Catherine ; Bolmont, J. ; Bordas, Pol ; Brucker, J. ; Brun, Francois ; Brun, Pierre ; Bulik, Tomasz ; Carrigan, Svenja ; Casanova, Sabrina ; Cerruti, M. ; Chadwick, Paula M. ; Chaves, Ryan C. G. ; Cheesebrough, A. ; Colafrancesco, Sergio ; Cologna, Gabriele ; Conrad, Jan ; Couturier, C. ; Dalton, M. ; Daniel, M. K. ; Davids, I. D. ; Degrange, B. ; Deil, C. ; deWilt, P. ; Dickinson, H. J. ; Djannati-Ataï, A. ; Domainko, W. ; Drury, L. O'C. ; Dubus, G. ; Dutson, K. ; Dyks, J. ; Dyrda, M. ; Egberts, Kathrin ; Eger, P. ; Espigat, P. ; Fallon, L. ; Farnier, C. ; Fegan, S. ; Feinstein, F. ; Fernandes, M. V. ; Fernandez, D. ; Fiasson, A. ; Fontaine, G. ; Foerster, A. ; Fuessling, M. ; Gajdus, M. ; Gallant, Y. A. ; Garrigoux, T. ; Gast, H. ; Giebels, B. ; Glicenstein, J. F. ; Glueck, B. ; Goering, D. ; Grondin, M. -H. ; Grudzinska, M. ; Haeffner, S. ; Hague, J. D. ; Hahn, J. ; Hampf, D. ; Harris, J. ; Heinz, S. ; Heinzelmann, G. ; Henri, G. ; Hermann, G. ; Hillert, A. ; Hinton, James Anthony ; Hofmann, W. ; Hofverberg, P. ; Holler, Markus ; Horns, D. ; Jacholkowska, A. ; Jahn, C. ; Jamrozy, M. ; Jung, I. ; Kastendieck, M. A. ; Katarzynski, K. ; Katz, U. ; Kaufmann, S. ; Khelifi, B. ; Klepser, S. ; Klochkov, D. ; Kluzniak, W. ; Kneiske, T. ; Kolitzus, D. ; Komin, Nu ; Kosack, K. ; Kossakowski, R. ; Krayzel, F. ; Krueger, P. P. ; Laffon, H. ; Lamanna, G. ; Lefaucheur, J. ; Lemoine-Goumard, M. ; Lenain, J. -P. ; Lennarz, D. ; Lohse, T. ; Lopatin, A. ; Lu, C. -C. ; Marandon, V. ; Marcowith, Alexandre ; Masbou, J. ; Maurin, G. ; Maxted, N. ; Mayer, M. ; McComb, T. J. L. ; Medina, M. C. ; Mehault, J. ; Menzler, U. ; Moderski, R. ; Mohamed, M. ; Moulin, Emmanuel ; Naumann, C. L. ; Naumann-Godo, M. ; de Naurois, M. ; Nedbal, D. ; Nguyen, N. ; Niemiec, J. ; Nolan, S. J. ; Oakes, L. ; Ohm, S. ; Wilhelmi, E. de Ona ; Opitz, B. ; Ostrowski, M. ; Oya, I. ; Panter, M. ; Parsons, R. D. ; Arribas, M. Paz ; Pekeur, N. W. ; Pelletier, G. ; Perez, J. ; Petrucci, P. -O. ; Peyaud, B. ; Pita, S. ; Puehlhofer, G. ; Punch, M. ; Quirrenbach, A. ; Raab, S. ; Raue, M. ; Reimer, A. ; Reimer, O. ; Renaud, M. ; de los Reyes, R. ; Rieger, F. ; Ripken, J. ; Rob, L. ; Rosier-Lees, S. ; Rowell, G. ; Rudak, B. ; Rulten, C. B. ; Sahakian, V. ; Sanchez, David M. ; Santangelo, Andrea ; Schlickeiser, R. ; Schulz, A. ; Schwanke, U. ; Schwarzburg, S. ; Schwemmer, S. ; Sheidaei, F. ; Skilton, J. L. ; Sol, H. ; Spengler, G. ; Stawarz, L. ; Steenkamp, R. ; Stegmann, Christian ; Stinzing, F. ; Stycz, K. ; Sushch, Iurii ; Szostek, A. ; Tavernet, J. -P. ; Terrier, R. ; Tluczykont, M. ; Trichard, C. ; Valerius, K. ; van Eldik, C. ; Vasileiadis, G. ; Venter, C. ; Viana, A. ; Vincent, P. ; Voelk, H. J. ; Volpe, F. ; Vorobiov, S. ; Vorster, M. ; Wagner, S. J. ; Ward, M. ; White, R. ; Wierzcholska, A. ; Willmann, P. ; Wouters, D. ; Zacharias, M. ; Zajczyk, A. ; Zdziarski, A. A. ; Zech, Alraune ; Zechlin, H. -S.
Aims. We present very high energy (VHE; E > 100 GeV) data from the gamma-ray binary system PSR B1259-63/LS 2883 taken around its periastron passage on 15th of December 2010 with the High Energy Stereoscopic System (H. E. S. S.) of Cherenkov Telescopes. We aim to search for a possible TeV counterpart of the GeV flare detected by the Fermi LAT. In addition, we aim to study the current periastron passage in the context of previous observations taken at similar orbital phases, testing the repetitive behaviour of the source.
Methods. Observations at VHEs were conducted with H.E.S.S. from 9th to 16th of January 2011. The total dataset amounts to similar to 6 h of observing time. The data taken around the 2004 periastron passage were also re-analysed with the current analysis techniques in order to extend the energy spectrum above 3 TeV to fully compare observation results from 2004 and 2011.
Results. The source is detected in the 2011 data at a significance level of 11.5 sigma revealing an averaged integral flux above 1 TeV of (1.01 +/- 0.18(stat) +/- 0.20(sys)) x 10(-12) cm(-2) s(-1). The differential energy spectrum follows a power-law shape with a spectral index Gamma = 2.92 +/- 0.30(stat) +/- 0.20(sys) and a flux normalisation at 1 TeV of N-0 = (1.95 +/- 0.32(stat) +/- 0.39(sys)) x 10(-12) TeV-1 cm(-2) s(-1). The measured light curve does not show any evidence for variability of the source on the daily scale. The re-analysis of the 2004 data yields results compatible with the published ones. The differential energy spectrum measured up to similar to 10 TeV is consistent with a power law with a spectral index Gamma = 2.81 +/- 0.10(stat) +/- 0.20(sys) and a flux normalisation at 1 TeV of N-0 = (1.29 +/- 0.08(stat) +/- 0.26(sys)) x 10(-12) TeV-1 cm(-2) s(-1).
Conclusions. The measured integral flux and the spectral shape of the 2011 data are compatible with the results obtained around previous periastron passages. The absence of variability in the H.E.S.S. data indicates that the GeV flare observed by Fermi LAT in the time period covered also by H.E.S.S. observations originates in a different physical scenario than the TeV emission. Moreover, the comparison of the new results to the results from the 2004 observations made at a similar orbital phase provides a stronger evidence of the repetitive behaviour of the source.
Abramowski, Attila ; Acero, F. ; Aharonian, Felix A. ; Akhperjanian, A. G. ; Angüner, Ekrem Oǧuzhan ; Anton, Gisela ; Balenderan, Shangkari ; Balzer, Arnim ; Barnacka, Anna ; Becherini, Yvonne ; Tjus, J. Becker ; Bernlöhr, K. ; Birsin, E. ; Bissaldi, E. ; Biteau, Jonathan ; Boisson, Catherine ; Bolmont, J. ; Bordas, Pol ; Brucker, J. ; Brun, Francois ; Brun, Pierre ; Bulik, Tomasz ; Carrigan, Svenja ; Casanova, Sabrina ; Cerruti, M. ; Chadwick, Paula M. ; Chalme-Calvet, R. ; Chaves, Ryan C. G. ; Cheesebrough, A. ; Chretien, M. ; Colafrancesco, Sergio ; Cologna, Gabriele ; Conrad, Jan ; Couturier, C. ; Dalton, M. ; Daniel, M. K. ; Davids, I. D. ; Degrange, B. ; Deil, C. ; deWilt, P. ; Dickinson, H. J. ; Djannati-Ataï, A. ; Domainko, W. ; Drury, L. O'C. ; Dubus, G. ; Dutson, K. ; Dyks, J. ; Dyrda, M. ; Edwards, T. ; Egberts, Kathrin ; Eger, P. ; Espigat, P. ; Farnier, C. ; Fegan, S. ; Feinstein, F. ; Fernandes, M. V. ; Fernandez, D. ; Fiasson, A. ; Fontaine, G. ; Foerster, A. ; Fuessling, M. ; Gajdus, M. ; Gallant, Y. A. ; Garrigoux, T. ; Gast, H. ; Giebels, B. ; Glicenstein, J. F. ; Goering, D. ; Grondin, M-H. ; Grudzinska, M. ; Haeffner, S. ; Hague, J. D. ; Hahn, J. ; Harris, J. ; Heinzelmann, G. ; Henri, G. ; Hermann, G. ; Hervet, O. ; Hillert, A. ; Hinton, James Anthony ; Hofmann, W. ; Hofverberg, P. ; Holler, M. ; Horns, D. ; Jacholkowska, A. ; Jahn, C. ; Jamrozy, M. ; Janiak, M. ; Jankowsky, F. ; Jung, I. ; Kastendieck, M. A. ; Katarzynski, K. ; Katz, U. ; Kaufmann, S. ; Khelifi, B. ; Kieffer, M. ; Klepser, S. ; Klochkov, D. ; Kluzniak, W. ; Kneiske, T. ; Kolitzus, D. ; Komin, Nu. ; Kosack, K. ; Krakau, S. ; Krayzel, F. ; Krueger, P. P. ; Laffon, H. ; Lamanna, G. ; Lefaucheur, J. ; Lemoine-Goumard, M. ; Lenain, J-P. ; Lennarz, D. ; Lohse, T. ; Lopatin, A. ; Lu, C-C. ; Marandon, V. ; Marcowith, Alexandre ; Maurin, G. ; Maxted, N. ; Mayer, M. ; McComb, T. J. L. ; Medina, M. C. ; Mehault, J. ; Menzler, U. ; Meyer, M. ; Moderski, R. ; Mohamed, M. ; Moulin, Emmanuel ; Murach, T. ; Naumann, C. L. ; de Naurois, M. ; Nedbal, D. ; Niemiec, J. ; Nolan, S. J. ; Oakes, L. ; Ohm, S. ; Wilhelmi, E. de Ona ; Opitz, B. ; Ostrowski, M. ; Oya, I. ; Panter, M. ; Parsons, R. D. ; Arribas, M. Paz ; Pekeur, N. W. ; Pelletier, G. ; Perez, J. ; Petrucci, P-O. ; Peyaud, B. ; Pita, S. ; Poon, H. ; Puehlhofer, G. ; Punch, M. ; Quirrenbach, A. ; Raab, S. ; Raue, M. ; Reimer, A. ; Reimer, O. ; Renaud, M. ; de los Reyes, R. ; Rieger, F. ; Rob, L. ; Rosier-Lees, S. ; Rowell, G. ; Rudak, B. ; Rulten, C. B. ; Sahakian, V. ; Sanchez, David M. ; Santangelo, Andrea ; Schlickeiser, R. ; Schuessler, F. ; Schulz, A. ; Schwanke, U. ; Schwarzburg, S. ; Schwemmer, S. ; Sol, H. ; Spengler, G. ; Spiess, F. ; Stawarz, L. ; Steenkamp, R. ; Stegmann, Christian ; Stinzing, F. ; Stycz, K. ; Sushch, Iurii ; Szostek, A. ; Tavernet, J-P. ; Terrier, R. ; Tluczykont, M. ; Trichard, C. ; Valerius, K. ; van Eldik, C. ; Vasileiadis, G. ; Venter, C. ; Viana, A. ; Vincent, P. ; Voelk, H. J. ; Volpe, F. ; Vorster, M. ; Wagner, S. J. ; Wagner, P. ; Ward, M. ; Weidinger, M. ; White, R. ; Wierzcholska, A. ; Willmann, P. ; Woernlein, A. ; Wouters, D. ; Zacharias, M. ; Zajczyk, A. ; Zdziarski, A. A. ; Zech, Alraune ; Zechlin, H-S. ; Perkins, J. S. ; Ojha, R. ; Stevens, J. ; Edwards, P. G. ; Kadler, M.
A deep observation campaign carried out by the High Energy Stereoscopic System (HESS) on Centaurus A enabled the discovery of gamma-rays from the blazar 1ES 1312-423, 2 degrees away from the radio galaxy. With a differential flux at 1 TeV of phi(1 TeV) = (1.9 +/- 0.6(stat) +/- 0.4(sys)) x 10(-13) cm(-2) s(-1) TeV-1 corresponding to 0.5 per cent of the Crab nebula differential flux and a spectral index Gamma = 2.9 +/- 0.5(stat) +/- 0.2(sys), 1ES 1312-423 is one of the faintest sources ever detected in the very high energy (E > 100 GeV) extragalactic sky. A careful analysis using three and a half years of Fermi Large Area Telescope (Fermi-LAT) data allows the discovery at high energies (E > 100 MeV) of a hard spectrum (Gamma = 1.4 +/- 0.4(stat) +/- 0.2(sys)) source coincident with 1ES 1312-423. Radio, optical, UV and X-ray observations complete the spectral energy distribution of this blazar, now covering 16 decades in energy. The emission is successfully fitted with a synchrotron self-Compton model for the non-thermal component, combined with a blackbody spectrum for the optical emission from the host galaxy.
Search for TeV Gamma-ray emission from GRB 100621A, an extremely bright GRB in X-rays, with HESS
(2014)
Abramowski, Attila ; Aharonian, Felix A. ; Benkhali, Faical Ait ; Akhperjanian, A. G. ; Angüner, Ekrem Oǧuzhan ; Anton, Gisela ; Balenderan, Shangkari ; Balzer, Arnim ; Barnacka, Anna ; Becherini, Yvonne ; Tjus, J. Becker ; Bernlöhr, K. ; Birsin, E. ; Bissaldi, E. ; Biteau, Jonathan ; Boettcher, Markus ; Boisson, Catherine ; Bolmont, J. ; Bordas, Pol ; Brucker, J. ; Brun, Francois ; Brun, Pierre ; Bulik, Tomasz ; Carrigan, Svenja ; Casanova, Sabrina ; Cerruti, M. ; Chadwick, Paula M. ; Chalme-Calvet, R. ; Chaves, Ryan C. G. ; Cheesebrough, A. ; Chretien, M. ; Colafrancesco, Sergio ; Cologna, Gabriele ; Conrad, Jan ; Couturier, C. ; Dalton, M. ; Daniel, M. K. ; Davids, I. D. ; Degrange, B. ; Deil, C. ; deWilt, P. ; Dicldnson, H. J. ; Djannati-Ataï, A. ; Domainko, W. ; Dubus, G. ; Dutson, K. ; Dyks, J. ; Dyrda, M. ; Edwards, T. ; Egberts, Kathrin ; Eger, P. ; Espigat, P. ; Farnier, C. ; Fegan, S. ; Feinstein, F. ; Fernandes, M. V. ; Fernandez, D. ; Fiasson, A. ; Fontaine, G. ; Foerster, A. ; Fuessling, Matthias ; Gajdus, M. ; Gallant, Y. A. ; Garrigoux, T. ; Giebels, B. ; Glicenstein, J. F. ; Grondin, M-H ; Grudzinska, M. ; Haeffner, S. ; Hahn, J. ; Harris, J. ; Heinzelmann, G. ; Henri, G. ; Hermann, G. ; Hervet, O. ; Hillert, A. ; Hinton, James Anthony ; Hofmann, W. ; Hofverberg, P. ; Holler, Markus ; Horns, D. ; Jacholkowska, A. ; Jahn, C. ; Jamrozy, M. ; Janiak, M. ; Jankowsky, F. ; Jung, I. ; Kastendieck, M. A. ; Katarzynski, K. ; Katz, U. ; Kaufmann, S. ; Khelifi, B. ; Kieffer, M. ; Klepser, S. ; Klochkov, D. ; Kluzniak, W. ; Kneiske, T. ; Kolitzus, D. ; Komin, Nu ; Kosack, K. ; Krakau, S. ; Krayzel, F. ; Krueger, P. P. ; Laffon, H. ; Lamanna, G. ; Lefaucheur, J. ; Lemiere, A. ; Lemoine-Goumard, M. ; Lenain, J-P ; Lennarz, D. ; Lohse, T. ; Lopatin, A. ; Lu, C-C ; Marandon, V. ; Marcowith, Alexandre ; Marx, R. ; Maurin, G. ; Maxted, N. ; Mayer, M. ; McComb, T. J. L. ; Mehault, J. ; Menzler, U. ; Meyer, M. ; Moderski, R. ; Mohamed, M. ; Moulin, Emmanuel ; Murach, T. ; Naumann, C. L. ; de Naurois, M. ; Niemiec, J. ; Nolan, S. J. ; Oakes, L. ; Ohm, S. ; Wilhelmi, E. de Ona ; Opitz, B. ; Ostrowski, M. ; Oya, I. ; Panter, M. ; Parsons, R. D. ; Arribas, M. Paz ; Pekeur, N. W. ; Pelletier, G. ; Perez, J. ; Petrucci, P-O ; Peyaud, B. ; Pita, S. ; Poon, H. ; Puehlhofer, G. ; Punch, M. ; Quirrenbach, A. ; Raab, S. ; Raue, M. ; Reimer, A. ; Reimer, O. ; Renaud, M. ; de los Reyes, R. ; Rieger, F. ; Rob, L. ; Romoli, C. ; Rosier-Lees, S. ; Rowell, G. ; Rudak, B. ; Rulten, C. B. ; Sahakian, V. ; Sanchez, David M. ; Santangelo, Andrea ; Schlickeiser, R. ; Schuessler, F. ; Schulz, A. ; Schwanke, U. ; Schwarzburg, S. ; Schwemmer, S. ; Sol, H. ; Spengler, G. ; Spies, F. ; Stawarz, L. ; Steenkamp, R. ; Stegmann, Christian ; Stinzing, F. ; Stycz, K. ; Sushch, Iurii ; Szostek, A. ; Tam, P. H. T. ; Tavernet, J-P ; Tavernier, T. ; Taylor, A. M. ; Terrier, R. ; Tluczykont, M. ; Trichard, C. ; Valerius, K. ; van Eldik, C. ; Vasileiadis, G. ; Venter, C. ; Viana, A. ; Vincent, P. ; Voelk, H. J. ; Volpe, F. ; Vorster, M. ; Wagner, S. J. ; Wagner, P. ; Ward, M. ; Weidinger, M. ; Weitzel, Q. ; White, R. ; Wierzcholska, A. ; Willmann, P. ; Woernlein, A. ; Wouters, D. ; Zacharias, M. ; Zajczyk, A. ; Zdziarski, A. A. ; Zech, Alraune ; Zechlin, H-S
The long gamma-ray burst (GRB) 100621A, at the time the brightest X-ray transient ever detected by Swift-XRT in the 0.3-10 keV range, has been observed with the H.E.S.S. imaging air Cherenkov telescope array, sensitive to gamma radiation in the very-high-energy (VHE, >100 GeV) regime. Due to its relatively small redshift of z similar to 0.5, the favourable position in the southern sky and the relatively short follow-up time (<700 s after the satellite trigger) of the H.E.S.S. observations, this GRB could be within the sensitivity reach of the HESS. instrument. The analysis of the HESS. data shows no indication of emission and yields an integral flux upper limit above similar to 380 GeV of 4.2 x 10(-12) cm(-2) s(-1) s (95% confidence level), assuming a simple Band function extension model. A comparison to a spectral-temporal model, normalised to the prompt flux at sub-MeV energies, constraints the existence of a temporally extended and strong additional hard power law, as has been observed in the other bright X-ray GRB 130427A. A comparison between the HESS. upper limit and the contemporaneous energy output in X-rays constrains the ratio between the X-ray and VHE gamma-ray fluxes to be greater than 0.4. This value is an important quantity for modelling the afterglow and can constrain leptonic emission scenarios, where leptons are responsible for the X-ray emission and might produce VHE gamma rays.
Abdalla, Hassan E. ; Aharonian, Felix A. ; Benkhali, F. Ait ; Angüner, Ekrem Oǧuzhan ; Arakawa, M. ; Arcaro, C. ; Armand, C. ; Arrieta, M. ; Backes, M. ; Barnard, M. ; Becherini, Y. ; Tjus, J. Becker ; Berge, D. ; Bernloehr, K. ; Blackwell, R. ; Bottcher, M. ; Boisson, C. ; Bolmont, J. ; Bonnefoy, S. ; Bordas, Pol ; Bregeon, J. ; Brun, F. ; Brun, P. ; Bryan, M. ; Buechele, M. ; Bulik, T. ; Bylund, T. ; Capasso, M. ; Caroff, S. ; Carosi, A. ; Casanova, Sabrina ; Cerruti, M. ; Chakraborty, N. ; Chand, T. ; Chandra, S. ; Chaves, R. C. G. ; Chen, A. ; Colafrancesco, S. ; Condon, B. ; Davids, I. D. ; Deil, C. ; Devin, J. ; deWilt, P. ; Dirson, L. ; Djannati-Atai, A. ; Dmytriiev, A. ; Donath, A. ; Doroshenko, V ; Dyks, J. ; Egberts, Kathrin ; Emery, G. ; Ernenwein, J-P ; Eschbach, S. ; Fegan, S. ; Fiasson, A. ; Fontaine, G. ; Funk, S. ; Fuessling, M. ; Gabici, S. ; Gallant, Y. A. ; Gate, F. ; Giavitto, G. ; Glawion, D. ; Glicenstein, J. F. ; Gottschall, D. ; Grondin, M-H ; Hahn, J. ; Haupt, M. ; Heinzelmann, G. ; Henri, G. ; Hermann, G. ; Hinton, James Anthony ; Hofmann, W. ; Hoischen, Clemens ; Holch, Tim Lukas ; Holler, M. ; Horns, D. ; Huber, D. ; Iwasaki, H. ; Jacholkowska, A. ; Jamrozy, M. ; Jankowsky, D. ; Jankowsky, F. ; Jouvin, L. ; Jung-Richardt, I ; Kastendieck, M. A. ; Katarzynski, K. ; Katsuragawa, M. ; Katz, U. ; Kerszberg, D. ; Khangulyan, D. ; Khelifi, B. ; King, J. ; Klepser, S. ; Kluzniak, W. ; Komin, Nu ; Kosack, K. ; Kraus, M. ; Lamanna, G. ; Lau, J. ; Lefaucheur, J. ; Lemiere, A. ; Lemoine-Goumard, M. ; Lenain, J-P ; Leser, Eva ; Lohse, T. ; Lopez-Coto, R. ; Lypova, I ; Malyshev, D. ; Marandon, V ; Marcowith, Alexandre ; Mariaud, C. ; Marti-Devesa, G. ; Marx, R. ; Maurin, G. ; Meintjes, P. J. ; Mitchell, A. M. W. ; Moderski, R. ; Mohamed, M. ; Mohrmann, L. ; Moore, C. ; Moulin, Emmanuel ; Murach, T. ; Nakashima, S. ; de Naurois, M. ; Ndiyavala, H. ; Niederwanger, F. ; Niemiec, J. ; Oakes, L. ; Odaka, H. ; Ohm, S. ; Ostrowski, M. ; Oya, I ; Panter, M. ; Parsons, R. D. ; Perennes, C. ; Petrucci, P-O ; Peyaud, B. ; Piel, Q. ; Pita, S. ; Poireau, V ; Noel, A. Priyana ; Prokhorov, D. A. ; Prokoph, H. ; Puehlhofer, G. ; Punch, M. ; Quirrenbach, A. ; Raab, S. ; Rauth, R. ; Reimer, A. ; Reimer, O. ; Renaud, M. ; Rieger, F. ; Rinchiuso, L. ; Romoli, C. ; Rowell, G. ; Rudak, B. ; Ruiz-Velasco, E. ; Sahakian, V ; Saito, S. ; Sanchez, David M. ; Santangelo, Andrea ; Sasaki, M. ; Schlickeiser, R. ; Schussler, F. ; Schulz, A. ; Schutte, H. ; Schwanke, U. ; Schwemmer, S. ; Seglar-Arroyo, M. ; Senniappan, M. ; Seyffert, A. S. ; Shafi, N. ; Shilon, I ; Shiningayamwe, K. ; Simoni, R. ; Sinha, A. ; Sol, H. ; Specovius, A. ; Spir-Jacob, M. ; Stawarz, L. ; Steenkamp, R. ; Stegmann, Christian ; Steppa, Constantin Beverly ; Takahashi, T. ; Tavernet, J-P ; Tavernier, T. ; Taylor, A. M. ; Terrier, R. ; Tibaldo, L. ; Tiziani, D. ; Tluczykont, M. ; Trichard, C. ; Tsirou, M. ; Tsuji, N. ; Tuffs, R. ; Uchiyama, Y. ; van der Walt, D. J. ; van Eldik, C. ; van Rensburg, C. ; van Soelen, B. ; Vasileiadis, G. ; Veh, J. ; Venter, C. ; Vincent, P. ; Vink, J. ; Voisin, F. ; Voelk, H. J. ; Vuillaume, T. ; Wadiasingh, Z. ; Wagner, S. J. ; Wagner, R. M. ; White, R. ; Wierzcholska, A. ; Yang, R. ; Yoneda, H. ; Zaborov, D. ; Zacharias, M. ; Zanin, R. ; Zdziarski, A. A. ; Zech, Alraune ; Zefi, F. ; Ziegler, A. ; Zorn, J. ; Zywucka, N.
Context. We present a detailed view of the pulsar wind nebula (PWN) HESS J1825-137. We aim to constrain the mechanisms dominating the particle transport within the nebula, accounting for its anomalously large size and spectral characteristics. Aims. The nebula was studied using a deep exposure from over 12 years of H.E.S.S. I operation, together with data from H.E.S.S. II that improve the low-energy sensitivity. Enhanced energy-dependent morphological and spatially resolved spectral analyses probe the very high energy (VHE, E > 0.1 TeV) gamma-ray properties of the nebula. Methods. The nebula emission is revealed to extend out to 1.5 degrees from the pulsar, similar to 1.5 times farther than previously seen, making HESS J1825-137, with an intrinsic diameter of similar to 100 pc, potentially the largest gamma-ray PWN currently known. Characterising the strongly energy-dependent morphology of the nebula enables us to constrain the particle transport mechanisms. A dependence of the nebula extent with energy of R proportional to E alpha with alpha = -0.29 +/- 0.04(stat) +/- 0.05(sys) disfavours a pure diffusion scenario for particle transport within the nebula. The total gamma-ray flux of the nebula above 1 TeV is found to be (1.12 +/- 0.03(stat) +/- 0.25(sys)) +/- 10(-11) cm(-2) s(-1), corresponding to similar to 64% of the flux of the Crab nebula. Results. HESS J1825-137 is a PWN with clearly energy-dependent morphology at VHE gamma-ray energies. This source is used as a laboratory to investigate particle transport within intermediate-age PWNe. Based on deep observations of this highly spatially extended PWN, we produce a spectral map of the region that provides insights into the spectral variation within the nebula.
Abdalla, Hassan E. ; Aharonian, Felix A. ; Benkhali, F. Ait ; Angüner, Ekrem Oǧuzhan ; Arakawa, M. ; Arcaro, C. ; Armand, C. ; Backes, M. ; Barnard, M. ; Becherini, Y. ; Berge, D. ; Bernloehr, K. ; Blackwell, R. ; Bottcher, M. ; Boisson, C. ; Bolmont, J. ; Bonnefoy, S. ; Bregeon, J. ; Brun, F. ; Brun, P. ; Bryan, M. ; Buechele, M. ; Bulik, T. ; Bylund, T. ; Capasso, M. ; Caroff, S. ; Carosi, A. ; Casanova, Sabrina ; Cerruti, M. ; Chakraborty, N. ; Chand, T. ; Chandra, S. ; Chaves, R. C. G. ; Chen, A. ; Colafrancesco, S. ; Condon, B. ; Davids, I. D. ; Deil, C. ; Devin, J. ; deWilt, P. ; Dirson, L. ; Djannati-Atai, A. ; Dmytriiev, A. ; Donath, A. ; Doroshenko, V ; Dyks, J. ; Egberts, Kathrin ; Emery, G. ; Ernenwein, J-P ; Eschbach, S. ; Feijen, K. ; Fegan, S. ; Fiasson, A. ; Fontaine, G. ; Funk, S. ; Fuessling, M. ; Gabici, S. ; Gallant, Y. A. ; Gate, F. ; Giavitto, G. ; Glawion, D. ; Glicenstein, J. F. ; Gottschall, D. ; Grondin, M-H ; Hahn, J. ; Haupt, M. ; Heinzelmann, G. ; Henri, G. ; Hermann, G. ; Hinton, James Anthony ; Hofmann, W. ; Hoischen, Clemens ; Holch, Tim Lukas ; Holler, M. ; Horns, D. ; Huber, D. ; Iwasaki, H. ; Jacholkowska, A. ; Jamrozy, M. ; Jankowsky, D. ; Jankowsky, F. ; Jouvin, L. ; Jung-Richardt, I ; Kastendieck, M. A. ; Katarzynski, K. ; Katsuragawa, M. ; Katz, U. ; Khangulyan, D. ; Khelifi, B. ; King, J. ; Klepser, S. ; Kluzniak, W. ; Komin, Nu ; Kosack, K. ; Kostunin, D. ; Kraus, M. ; Lamanna, G. ; Lau, J. ; Lemiere, A. ; Lemoine-Goumard, M. ; Lenain, J-P ; Leser, Eva ; Lohse, T. ; Lopez-Coto, R. ; Lypova, I ; Malyshev, D. ; Marandon, V ; Marcowith, Alexandre ; Mariaud, C. ; Marti-Devesa, G. ; Marx, R. ; Maurin, G. ; Maxted, N. ; Meintjes, P. J. ; Mitchell, A. M. W. ; Moderski, R. ; Mohamed, M. ; Mohrmann, L. ; Moore, C. ; Moulin, Emmanuel ; Murach, T. ; Nakashima, S. ; de Naurois, M. ; Ndiyavala, H. ; Niederwanger, F. ; Niemiec, J. ; Oakes, L. ; Odaka, H. ; Ohm, S. ; Wilhelmi, E. de Ona ; Ostrowski, M. ; Oya, I ; Panter, M. ; Parsons, R. D. ; Perennes, C. ; Petrucci, P-O ; Peyaud, B. ; Piel, Q. ; Pita, S. ; Poireau, V ; Noel, A. Priyana ; Prokhorov, D. A. ; Prokoph, H. ; Puehlhofer, G. ; Punch, M. ; Quirrenbach, A. ; Raab, S. ; Rauth, R. ; Reimer, A. ; Reimer, O. ; Renaud, M. ; Rieger, F. ; Rinchiuso, L. ; Romoli, C. ; Rowell, G. ; Rudak, B. ; Ruiz-Velasco, E. ; Sahakian, V ; Saito, S. ; Sanchez, David M. ; Santangelo, Andrea ; Sasaki, M. ; Schlickeiser, R. ; Schussler, F. ; Schulz, A. ; Schutte, H. ; Schwanke, U. ; Schwemmer, S. ; Seglar-Arroyo, M. ; Senniappan, M. ; Seyffert, A. S. ; Shafi, N. ; Shilon, I ; Shiningayamwe, K. ; Simoni, R. ; Sinha, A. ; Sol, H. ; Specovius, A. ; Spir-Jacob, M. ; Stawarz, L. ; Steenkamp, R. ; Stegmann, Christian ; Steppa, Constantin Beverly ; Takahashi, T. ; Tavernet, J-P ; Tavernier, T. ; Taylor, A. M. ; Terrier, R. ; Tibaldo, Luigi ; Tiziani, D. ; Tluczykont, M. ; Trichard, C. ; Tsirou, M. ; Tsuji, N. ; Tuffs, R. ; Uchiyama, Y. ; van der Walt, D. J. ; van Eldik, C. ; van Rensburg, C. ; van Soelen, B. ; Vasileiadis, G. ; Veh, J. ; Venter, C. ; Vincent, P. ; Vink, J. ; Voisin, F. ; Voelk, H. J. ; Vuillaume, T. ; Wadiasingh, Z. ; Wagner, S. J. ; White, R. ; Wierzcholska, A. ; Yang, R. ; Yoneda, H. ; Zaborov, D. ; Zacharias, M. ; Zanin, R. ; Zdziarski, A. A. ; Zech, Alraune ; Ziegler, A. ; Zorn, J. ; Zywucka, N.
Context. Pulsar wind nebulae (PWNe) represent the most prominent population of Galactic very-high-energy gamma-ray sources and are thought to be an efficient source of leptonic cosmic rays. Vela X is a nearby middle-aged PWN, which shows bright X-ray and TeV gamma-ray emission towards an elongated structure called the cocoon. Aims. Since TeV emission is likely inverse-Compton emission of electrons, predominantly from interactions with the cosmic microwave background, while X-ray emission is synchrotron radiation of the same electrons, we aim to derive the properties of the relativistic particles and of magnetic fields with minimal modelling. Methods. We used data from the Suzaku XIS to derive the spectra from three compact regions in Vela X covering distances from 0.3 to 4 pc from the pulsar along the cocoon. We obtained gamma-ray spectra of the same regions from H.E.S.S. observations and fitted a radiative model to the multi-wavelength spectra. Results. The TeV electron spectra and magnetic field strengths are consistent within the uncertainties for the three regions, with energy densities of the order 10(-12) erg cm(-3). The data indicate the presence of a cutoff in the electron spectrum at energies of similar to 100 TeV and a magnetic field strength of similar to 6 mu G. Constraints on the presence of turbulent magnetic fields are weak. Conclusions. The pressure of TeV electrons and magnetic fields in the cocoon is dynamically negligible, requiring the presence of another dominant pressure component to balance the pulsar wind at the termination shock. Sub-TeV electrons cannot completely account for the missing pressure, which may be provided either by relativistic ions or from mixing of the ejecta with the pulsar wind. The electron spectra are consistent with expectations from transport scenarios dominated either by advection via the reverse shock or by diffusion, but for the latter the role of radiative losses near the termination shock needs to be further investigated in the light of the measured cutoff energies. Constraints on turbulent magnetic fields and the shape of the electron cutoff can be improved by spectral measurements in the energy range greater than or similar to 10 keV.
Abdalla, Hassan E. ; Aharonian, Felix A. ; Benkhali, F. Ait ; Angüner, Ekrem Oǧuzhan ; Arakawa, M. ; Arcaro, C. ; Armand, C. ; Arrieta, M. ; Backes, M. ; Barnard, M. ; Becherini, Y. ; Tjus, J. Becker ; Berge, D. ; Bernhard, S. ; Bernloehr, K. ; Blackwell, R. ; Bottcher, M. ; Boisson, C. ; Bolmont, J. ; Bonnefoy, S. ; Bordas, Pol ; Bregeon, J. ; Brun, F. ; Brun, P. ; Bryan, M. ; Buechele, M. ; Bulik, T. ; Bylund, T. ; Capasso, M. ; Caroff, S. ; Carosi, A. ; Cerruti, M. ; Chakraborty, N. ; Chandra, S. ; Chaves, R. C. G. ; Chen, A. ; Colafrancesco, S. ; Condon, B. ; Davids, I. D. ; Deil, C. ; Devin, J. ; deWilt, P. ; Dirson, L. ; Djannati-Atai, A. ; Dmytriiev, A. ; Donath, A. ; Doroshenko, V ; Dyks, J. ; Egberts, Kathrin ; Emery, G. ; Ernenwein, J-P ; Eschbach, S. ; Fegan, S. ; Fiasson, A. ; Fontaine, G. ; Funk, S. ; Fuessling, M. ; Gabici, S. ; Gallant, Y. A. ; Gate, F. ; Giavitto, G. ; Glawion, D. ; Glicenstein, J. F. ; Gottschall, D. ; Grondin, M-H ; Hahn, J. ; Haupt, M. ; Heinzelmann, G. ; Henri, G. ; Hermann, G. ; Hinton, James Anthony ; Hofmann, W. ; Hoischen, Clemens ; Holch, Tim Lukas ; Holler, M. ; Horns, D. ; Huber, D. ; Iwasaki, H. ; Jacholkowska, A. ; Jamrozy, M. ; Jankowsky, D. ; Jankowsky, F. ; Jouvin, L. ; Jung-Richardt, I ; Kastendieck, M. A. ; Katarzynski, K. ; Katsuragawa, M. ; Katz, U. ; Kerszberg, D. ; Khangulyan, D. ; Khelifi, B. ; King, J. ; Klepser, S. ; Kluzniak, W. ; Komin, Nu ; Kosack, K. ; Krakau, S. ; Kraus, M. ; Kruger, P. P. ; Lamanna, G. ; Lau, J. ; Lefaucheur, J. ; Lemiere, A. ; Lemoine-Goumard, M. ; Lenain, J-P ; Leser, Eva ; Lohse, T. ; Lorentz, M. ; Lopez-Coto, R. ; Lypova, I ; Malyshev, D. ; Marandon, V ; Marcowith, Alexandre ; Mariaud, C. ; Marti-Devesa, G. ; Marx, R. ; Maurin, G. ; Meintjes, P. J. ; Mitchell, A. M. W. ; Moderski, R. ; Mohamed, M. ; Mohrmann, L. ; Moulin, Emmanuel ; Murach, T. ; Nakashima, S. ; de Naurois, M. ; Ndiyavala, H. ; Niederwanger, F. ; Niemiec, J. ; Oakes, L. ; Odaka, H. ; Ohm, S. ; Ostrowski, M. ; Oya, I ; Padovani, M. ; Panter, M. ; Parsons, R. D. ; Perennes, C. ; Petrucci, P-O ; Peyaud, B. ; Piel, Q. ; Pita, S. ; Poireau, V ; Noel, A. Priyana ; Prokhorov, D. ; Prokoph, H. ; Puehlhofer, G. ; Punch, M. ; Quirrenbach, A. ; Raab, S. ; Rauth, R. ; Reimer, A. ; Reimer, O. ; Renaud, M. ; Rieger, F. ; Rinchiuso, L. ; Romoli, C. ; Rowell, G. ; Rudak, B. ; Ruiz-Velasco, E. ; Sahakian, V ; Saito, S. ; Sanchez, David M. ; Santangelo, Andrea ; Sasaki, M. ; Schlickeiser, R. ; Schussler, F. ; Schulz, A. ; Schwanke, U. ; Schwemmer, S. ; Seglar-Arroyo, M. ; Senniappan, M. ; Seyffert, A. S. ; Shafi, N. ; Shilon, I ; Shiningayamwe, K. ; Simoni, R. ; Sinha, A. ; Sol, H. ; Spanier, F. ; Specovius, A. ; Spir-Jacob, M. ; Stawarz, L. ; Steenkamp, R. ; Stegmann, Christian ; Steppa, Constantin Beverly ; Takahashi, T. ; Tavernet, J-P ; Tavernier, T. ; Taylor, A. M. ; Terrier, R. ; Tibaldo, L. ; Tiziani, D. ; Tluczykont, M. ; Trichard, C. ; Tsirou, M. ; Tsuji, N. ; Tuffs, R. ; Uchiyama, Y. ; van der Walt, D. J. ; van Eldik, C. ; van Rensburg, C. ; van Soelen, B. ; Vasileiadis, G. ; Veh, J. ; Venter, C. ; Vincent, P. ; Vink, J. ; Voisin, F. ; Voelk, H. J. ; Vuillaume, T. ; Wadiasingh, Z. ; Wagner, S. J. ; Wagner, R. M. ; White, R. ; Wierzcholska, A. ; Yang, R. ; Zaborov, D. ; Zacharias, M. ; Zanin, R. ; Zdziarski, A. A. ; Zech, Alraune ; Zefi, F. ; Ziegler, A. ; Zorn, J. ; Zywucka, N.
The blazar Mrk 501 (z = 0.034) was observed at very-high-energy (VHE, E greater than or similar to 100 GeV) gamma-ray wavelengths during a bright flare on the night of 2014 June 23-24 (MJD 56832) with the H.E.S.S. phase-II array of Cherenkov telescopes. Data taken that night by H.E.S.S. at large zenith angle reveal an exceptional number of gamma-ray photons at multi-TeV energies, with rapid flux variability and an energy coverage extending significantly up to 20 TeV. This data set is used to constrain Lorentz invariance violation (LIV) using two independent channels: a temporal approach considers the possibility of an energy dependence in the arrival time of gamma-rays, whereas a spectral approach considers the possibility of modifications to the interaction of VHE gamma-rays with extragalactic background light (EBL) photons. The non-detection of energy-dependent time delays and the non-observation of deviations between the measured spectrum and that of a supposed power-law intrinsic spectrum with standard EBL attenuation are used independently to derive strong constraints on the energy scale of LIV (E-QG) in the subluminal scenario for linear and quadratic perturbations in the dispersion relation of photons. For the case of linear perturbations, the 95% confidence level limits obtained are E-QG,E-1 > 3.6 x 10(17) GeV using the temporal approach and E-QG,E-1 > 2.6 x 10(19) GeV using the spectral approach. For the case of quadratic perturbations, the limits obtained are E-QG,E-2 > 8.5 x 10(10) GeV using the temporal approach and E-QG,E-2 > 7.8 x 10(11) GeV using the spectral approach.
First ground-based measurement of sub-20 GeV to 100 GeV gamma-Rays from the Vela pulsar with HESS II
(2018)
Abdalla, Hassan E. ; Aharonian, Felix A. ; Benkhali, F. Ait ; Angüner, Ekrem Oǧuzhan ; Arakawa, M. ; Arcaro, C. ; Armand, C. ; Arrieta, M. ; Backes, M. ; Barnard, M. ; Becherini, Y. ; Tjus, J. Becker ; Berge, D. ; Bernhard, S. ; Bernlohr, K. ; Blackwell, R. ; Bottcher, M. ; Boisson, C. ; Bolmont, J. ; Bonnefoy, S. ; Bordas, Pol ; Bregeon, J. ; Brun, F. ; Brun, P. ; Bryan, M. ; Buechele, M. ; Bulik, T. ; Bylund, T. ; Capasso, M. ; Caroff, S. ; Carosi, A. ; Casanova, Sabrina ; Cerruti, M. ; Chakraborty, N. ; Chandra, S. ; Chen, A. ; Colafrancesco, S. ; Condon, B. ; Davids, I. D. ; Deil, C. ; Devin, J. ; deWilt, P. ; Dirson, L. ; Djannati-Atai, A. ; Dmytriiev, A. ; Donath, A. ; Doroshenko, V ; Dyks, J. ; Egberts, Kathrin ; Emery, G. ; Ernenwein, J-P ; Eschbach, S. ; Fegan, S. ; Fiasson, A. ; Fontaine, G. ; Funk, S. ; Fuessling, M. ; Gabici, S. ; Gallant, Y. A. ; Gate, F. ; Giavitto, G. ; Glawion, D. ; Glicenstein, J. F. ; Gottschall, D. ; Grondin, M-H ; Hahn, J. ; Haupt, M. ; Heinzelmann, G. ; Henri, G. ; Hermann, G. ; Hinton, J. A. ; Hofmann, W. ; Hoischen, Clemens ; Holch, T. L. ; Holler, M. ; Horns, D. ; Huber, D. ; Iwasaki, H. ; Jacholkowska, A. ; Jamrozy, M. ; Jankowsky, D. ; Jankowsky, F. ; Jouvin, L. ; Jung-Richardt, I ; Kastendieck, M. A. ; Katarzynski, K. ; Katsuragawa, M. ; Katz, U. ; Kerszberg, D. ; Khangulyan, D. ; Khelifi, B. ; King, J. ; Klepser, S. ; Kluzniak, W. ; Komin, Nu ; Kosack, K. ; Krakau, S. ; Kraus, M. ; Krüger, P. P. ; Lamanna, G. ; Lau, J. ; Lefaucheur, J. ; Lemiere, A. ; Lemoine-Goumard, M. ; Lenain, J-P ; Leser, Eva ; Lohse, T. ; Lorentz, M. ; Lopez-Coto, R. ; Lypova, I ; Malyshev, D. ; Marandon, V ; Marcowith, Alexandre ; Mariaud, C. ; Marti-Devesa, G. ; Marx, R. ; Maurin, G. ; Meintjes, P. J. ; Mitchell, A. M. W. ; Moderski, R. ; Mohamed, M. ; Mohrmann, L. ; Moulin, Emmanuel ; Murach, T. ; Nakashima, S. ; de Naurois, M. ; Ndiyavala, H. ; Niederwanger, F. ; Niemiec, J. ; Oakes, L. ; Odaka, H. ; Ohm, S. ; Ostrowski, M. ; Oya, I ; Padovani, M. ; Panter, M. ; Parsons, R. D. ; Perennes, C. ; Petrucci, P-O ; Peyaud, B. ; Piel, Q. ; Pita, S. ; Poireau, V ; Noel, A. Priyana ; Prokhorov, D. A. ; Prokoph, H. ; Puehlhofer, G. ; Punch, M. ; Quirrenbach, A. ; Raab, S. ; Rauth, R. ; Reimer, A. ; Reimer, O. ; Renaud, M. ; Rieger, F. ; Rinchiuso, L. ; Romoli, C. ; Rowell, G. ; Rudak, B. ; Ruiz-Velasco, E. ; Sahakian, V ; Saito, S. ; Sanchez, D. A. ; Santangelo, Andrea ; Sasaki, M. ; Schlickeiser, R. ; Schussler, F. ; Schulz, A. ; Schwanke, U. ; Schwemmer, S. ; Seglar-Arroyo, M. ; Senniappan, M. ; Seyffert, A. S. ; Shafi, N. ; Shilon, I ; Shiningayamwe, K. ; Simoni, R. ; Sinha, A. ; Sol, H. ; Spanier, F. ; Specovius, A. ; Spir-Jacob, M. ; Stawarz, L. ; Steenkamp, R. ; Stegmann, Christian ; Steppa, Constantin Beverly ; Takahashi, T. ; Tavernet, J-P ; Tavernier, T. ; Taylor, A. M. ; Terrier, R. ; Tibaldo, L. ; Tiziani, D. ; Tluczykont, M. ; Trichard, C. ; Tsirou, M. ; Tsuji, N. ; Tuffs, R. ; Uchiyama, Y. ; van der Walt, D. J. ; van Eldik, C. ; van Rensburg, C. ; van Soelen, B. ; Vasileiadis, G. ; Veh, J. ; Venter, C. ; Vincent, P. ; Vink, J. ; Voisin, F. ; Voelk, H. J. ; Vuillaume, T. ; Wadiasingh, Z. ; Wagner, S. J. ; Wagner, R. M. ; White, R. ; Wierzcholska, A. ; Yang, R. ; Zaborov, D. ; Zacharias, M. ; Zanin, R. ; Zdziarski, A. A. ; Zech, Alraune ; Zefi, F. ; Ziegler, A. ; Zorn, J. ; Zywucka, N. ; Kerr, M. ; Johnston, S. ; Shannon, R. M.
Aims. We report on the measurement and investigation of pulsed high-energy y-ray emission from the Vela pulsar, PSR B0833-45, based on observations with the largest telescope of H.E.S.S., CT5, in monoscopic mode, and on data obtained with the Fermi-LAT. Methods. Data from 40.3 h of observations carried out with the H.E.S.S. II array from 2013 to 2015 have been used. A dedicated very low-threshold event reconstruction and analysis pipeline was developed to achieve the lowest possible energy threshold. Eight years of Fermi-LAT data were analysed and also used as reference to validate the CT5 telescope response model and analysis methods. Results. A pulsed gamma-ray signal at a significance level of more than 15 sigma is detected from the P2 peak of the Vela pulsar light curve. Of a total of 15 835 events, more than 6000 lie at an energy below 20 GeV, implying a significant overlap between H.E.S.S. II-CT5 and the Fermi-LAT. While the investigation of the pulsar light curve with the LAT confirms characteristics previously known up to 20 GeV in the tens of GeV energy range, CT5 data show a change in the pulse morphology of P2, i.e. an extreme sharpening of its trailing edge, together with the possible onset of a new component at 3.4 sigma significance level. Assuming a power-law model for the P2 spectrum, an excellent agreement is found for the photon indices (Gamma similar or equal to 4.1) obtained with the two telescopes above 10 GeV and an upper bound of 8% is derived on the relative offset between their energy scales. Using data from both instruments, it is shown however that the spectrum of P2 in the 10-100 GeV has a pronounced curvature; this is a confirmation of the sub-exponential cut-off form found at lower energies with the LAT. This is further supported by weak evidence of an emission above 100 GeV obtained with CT5. In contrast, converging indications are found from both CT5 and LAT data for the emergence of a hard component above 50 GeV in the leading wing (LW2) of P2, which possibly extends beyond 100 GeV. Conclusions. The detection demonstrates the performance and understanding of CT5 from 100 GeV down to the sub-20 GeV domain, i.e. unprecedented low energy for ground-based gamma-ray astronomy. The extreme sharpening of the trailing edge of the P2 peak found in the H.E.S.S. II light curve of the Vela pulsar and the possible extension beyond 100 GeV of at least one of its features, LW2, provide further constraints to models of gamma-Ray emission from pulsars.
Abdalla, Hassan E. ; Abramowski, A. ; Aharonian, Felix A. ; Benkhali, F. Ait ; Angüner, Ekrem Oǧuzhan ; Arakawa, M. ; Armand, C. ; Arrieta, M. ; Backes, M. ; Balzer, A. ; Barnard, M. ; Becherini, Y. ; Tjus, J. Becker ; Berge, D. ; Bernhard, S. ; Bernloehr, K. ; Blackwell, R. ; Bottcher, M. ; Boisson, C. ; Bolmont, J. ; Bonnefoy, S. ; Bordas, Pol ; Bregeon, J. ; Brun, F. ; Brun, P. ; Bryan, M. ; Buechele, M. ; Bulik, T. ; Capasso, M. ; Caroff, S. ; Carosi, A. ; Casanova, Sabrina ; Cerruti, M. ; Chakraborty, N. ; Chaves, R. C. G. ; Chen, A. ; Chevalier, J. ; Colafrancesco, S. ; Condon, B. ; Conrad, J. ; Davids, I. D. ; Decock, J. ; Deil, C. ; Devin, J. ; deWilt, P. ; Dirson, L. ; Djannati-Atai, A. ; Donath, A. ; Dyks, J. ; Edwards, T. ; Egberts, Kathrin ; Emery, G. ; Ernenwein, J-P ; Eschbach, S. ; Farnier, C. ; Fegan, S. ; Fernandes, M. ; Fiasson, A. ; Fontaine, G. ; Funk, S. ; Fuessling, M. ; Gabici, S. ; Gallant, Y. A. ; Garrigoux, T. ; Gate, F. ; Giavitto, G. ; Glawion, D. ; Glicenstein, J. F. ; Gottschall, D. ; Grondin, M-H ; Hahn, J. ; Haupt, M. ; Hawkes, J. ; Heinzelmann, G. ; Henri, G. ; Hermann, G. ; Hinton, J. A. ; Hofmann, W. ; Hoischen, Clemens ; Holch, T. L. ; Holler, M. ; Horns, D. ; Ivascenko, A. ; Iwasaki, H. ; Jacholkowska, A. ; Jamrozy, M. ; Jankowsky, D. ; Jankowsky, F. ; Jingo, M. ; Jouvin, L. ; Jung-Richardt, I ; Kastendieck, M. A. ; Katarzynski, K. ; Katsuragawa, M. ; Katz, U. ; Kerszberg, D. ; Khangulyan, D. ; Khelifi, B. ; King, J. ; Klepser, S. ; Klochkov, D. ; Kluzniak, W. ; Komin, Nu ; Kosack, K. ; Krakau, S. ; Kraus, M. ; Kruger, P. P. ; Laffon, H. ; Lamanna, G. ; Lau, J. ; Lefaucheur, J. ; Lemiere, A. ; Lemoine-Goumard, M. ; Lenain, J-P ; Leser, Eva ; Lohse, T. ; Lorentz, M. ; Liu, R. ; Lopez-Coto, R. ; Lypova, I ; Malyshev, D. ; Marandon, V ; Marcowith, Alexandre ; Mariaud, C. ; Marx, R. ; Maurin, G. ; Maxted, N. ; Mayer, M. ; Meintjes, P. J. ; Meyer, M. ; Mitchell, A. M. W. ; Moderski, R. ; Mohamed, M. ; Mohrmann, L. ; Mora, K. ; Moulin, Emmanuel ; Murach, T. ; Nakashima, S. ; de Naurois, M. ; Ndiyavala, H. ; Niederwanger, F. ; Niemiec, J. ; Oakes, L. ; Odaka, H. ; Ohm, S. ; Ostrowski, M. ; Oya, I ; Padovani, M. ; Panter, M. ; Parsons, R. D. ; Pekeur, N. W. ; Pelletier, G. ; Perennes, C. ; Petrucci, P-O ; Peyaud, B. ; Piel, Q. ; Pita, S. ; Poireau, V ; Prokhorov, D. A. ; Prokoph, H. ; Puehlhofer, G. ; Punch, M. ; Quirrenbach, A. ; Raab, S. ; Rauth, R. ; Reimer, A. ; Reimer, O. ; Renaud, M. ; de los Reyes, R. ; Rieger, F. ; Rinchiuso, L. ; Romoli, C. ; Rowell, G. ; Rudak, B. ; Rulten, C. B. ; Sahakian, V ; Saito, S. ; Sanchez, D. A. ; Santangelo, Andrea ; Sasaki, M. ; Schlickeiser, R. ; Schussler, F. ; Schulz, A. ; Schwanke, U. ; Schwemmer, S. ; Seglar-Arroyo, M. ; Seyffert, A. S. ; Shafi, N. ; Shilon, I ; Shiningayamwe, K. ; Simoni, R. ; Sol, H. ; Spanier, F. ; Spir-Jacob, M. ; Stawarz, L. ; Steenkamp, R. ; Stegmann, Christian ; Steppa, Constantin Beverly ; Sushch, Iurii ; Takahashi, T. ; Tavernet, J-P ; Tavernier, T. ; Taylor, A. M. ; Terrier, R. ; Tibaldo, L. ; Tiziani, D. ; Tluczykont, M. ; Trichard, C. ; Tsirou, M. ; Tsuji, N. ; Tuffs, R. ; Uchiyama, Y. ; van der Walt, D. J. ; van Eldik, C. ; van Rensburg, C. ; van Soelen, B. ; Vasileiadis, G. ; Veh, J. ; Venter, C. ; Viana, A. ; Vincent, P. ; Vink, J. ; Voisin, F. ; Voelk, H. J. ; Vuillaume, T. ; Wadiasingh, Z. ; Wagner, S. J. ; Wagner, P. ; Wagner, R. M. ; White, R. ; Wierzcholska, A. ; Willmann, P. ; Woernlein, A. ; Wouters, D. ; Yang, R. ; Zaborov, D. ; Zacharias, M. ; Zanin, R. ; Zdziarski, A. A. ; Zech, Alraune ; Zefi, F. ; Ziegler, A. ; Zorn, J. ; Zywucka, N. ; Magill, J. D. ; Buson, S. ; Cheung, C. C. ; Perkins, J. S. ; Tanaka, Y.
Centaurus A (Cen A) is the nearest radio galaxy discovered as a very-high-energy (VHE; 100 GeV-100 TeV) gamma-ray source by the High Energy Stereoscopic System (H.E.S.S.). It is a faint VHE gamma-ray emitter, though its VHE flux exceeds both the extrapolation from early Fermi-LAT observations as well as expectations from a (misaligned) single-zone synchrotron-self Compton (SSC) description. The latter satisfactorily reproduces the emission from Cen A at lower energies up to a few GeV. New observations with H.E.S.S., comparable in exposure time to those previously reported, were performed and eight years of Fermi-LAT data were accumulated to clarify the spectral characteristics of the gamma-ray emission from the core of Cen A. The results allow us for the first time to achieve the goal of constructing a representative, contemporaneous gamma-ray core spectrum of Cen A over almost five orders of magnitude in energy. Advanced analysis methods, including the template fitting method, allow detection in the VHE range of the core with a statistical significance of 12 sigma on the basis of 213 hours of total exposure time. The spectrum in the energy range of 250 GeV-6 TeV is compatible with a power-law function with a photon index Gamma = 2.52 +/- 0.13(stat) +/- 0.20(sys). An updated Fermi-LAT analysis provides evidence for spectral hardening by Delta Gamma similar or equal to 0.4 +/- 0.1 at gamma-ray energies above 2.8(-0.6)(+1.0) GeV at a level of 4.0 sigma. The fact that the spectrum hardens at GeV energies and extends into the VHE regime disfavour a single-zone SSC interpretation for the overall spectral energy distribution (SED) of the core and is suggestive of a new gamma-ray emitting component connecting the high-energy emission above the break energy to the one observed at VHE energies. The absence of significant variability at both GeV and TeV energies does not yet allow disentanglement of the physical nature of this component, though a jet-related origin is possible and a simple two-zone SED model fit is provided to this end.
Abdalla, Hassan E. ; Abramowski, A. ; Aharonian, Felix A. ; Benkhali, F. Ait ; Angüner, Ekrem Oǧuzhan ; Arakawa, M. ; Arrieta, M. ; Aubert, P. ; Backes, M. ; Balzer, A. ; Barnard, M. ; Becherini, Y. ; Tjus, J. Becker ; Berge, D. ; Bernhard, S. ; Bernloehr, K. ; Blackwell, R. ; Bottcher, M. ; Boisson, C. ; Bolmont, J. ; Bonnefoy, S. ; Bordas, Pol ; Bregeon, J. ; Brun, F. ; Brun, P. ; Bryan, M. ; Buechele, M. ; Bulik, T. ; Capasso, M. ; Caroff, S. ; Carosi, A. ; Carr, J. ; Casanova, Sabrina ; Cerruti, M. ; Chakraborty, N. ; Chaves, R. C. G. ; Chen, A. ; Chevalier, J. ; Colafrancesco, S. ; Condon, B. ; Conrad, J. ; Davids, I. D. ; Decock, J. ; Deil, C. ; Devin, J. ; Dewilt, P. ; Dirson, L. ; Djannati-Atai, A. ; Domainko, W. ; Donath, A. ; Dutson, K. ; Dyks, J. ; Edwards, T. ; Egberts, Kathrin ; Eger, P. ; Emery, G. ; Ernenwein, J-P ; Eschbach, S. ; Farnier, C. ; Fegan, S. ; Fernandes, M. ; Fiasson, A. ; Fontaine, G. ; Foerster, A. ; Funk, S. ; Fuessling, M. ; Gabici, S. ; Gallant, Y. A. ; Garrigoux, T. ; Gate, F. ; Giavitto, G. ; Giebels, B. ; Glawion, D. ; Glicenstein, J. F. ; Gottschall, D. ; Grondin, M-H ; Hahn, J. ; Haupt, M. ; Hawkes, J. ; Heinzelmann, G. ; Henri, G. ; Hermann, G. ; Hinton, J. A. ; Hofmann, W. ; Hoischen, Clemens ; Holch, T. L. ; Holler, M. ; Horns, D. ; Ivascenko, A. ; Iwasaki, H. ; Jacholkowska, A. ; Jamrozy, M. ; Janiak, M. ; Jankowsky, D. ; Jankowsky, F. ; Jingo, M. ; Jouvin, L. ; Jung-Richardt, I ; Kastendieck, M. A. ; Katarzynski, K. ; Katsuragawa, M. ; Katz, U. ; Kerszberg, D. ; Khangulyan, D. ; Khelifi, B. ; King, J. ; Klepser, S. ; Klochkov, D. ; Kluzniak, W. ; Komin, Nu ; Kosack, K. ; Krakau, S. ; Kraus, M. ; Krueger, P. P. ; Laffon, H. ; Lamanna, G. ; Lau, J. ; Lees, J-P ; Lefaucheur, J. ; Lemiere, A. ; Lemoine-Goumard, M. ; Lenain, J-P ; Leser, Eva ; Liu, R. ; Lohse, T. ; Lorentz, M. ; Lopez-Coto, R. ; Lypova, I ; Malyshev, D. ; Marandon, V ; Marcowith, Alexandre ; Mariaud, C. ; Marx, R. ; Maurin, G. ; Maxted, N. ; Mayer, M. ; Meintjes, P. J. ; Meyer, M. ; Mitchell, A. M. W. ; Moderski, R. ; Mohamed, M. ; Mohrmann, L. ; Mora, K. ; Moulin, Emmanuel ; Murach, T. ; Nakashima, S. ; de Naurois, M. ; Ndiyavala, H. ; Niederwanger, F. ; Niemiec, J. ; Oakes, L. ; Odaka, H. ; Ohm, S. ; Ostrowski, M. ; Oya, I ; Padovani, M. ; Panter, M. ; Parsons, R. D. ; Pekeur, N. W. ; Pelletier, G. ; Perennes, C. ; Petrucci, P-O ; Peyaud, B. ; Piel, Q. ; Pita, S. ; Poireau, V ; Poon, H. ; Prokhorov, D. ; Prokoph, H. ; Puelhofer, G. ; Punch, M. ; Quirrenbach, A. ; Raab, S. ; Rauth, R. ; Reimer, A. ; Reimer, O. ; Renaud, M. ; De Los Reyes, R. ; Rieger, F. ; Rinchiuso, L. ; Romoli, C. ; Rowell, G. ; Rudak, B. ; Rulten, C. B. ; Sahakian, V ; Saito, S. ; Sanchez, D. A. ; Santangelo, Andrea ; Sasaki, M. ; Schandri, M. ; Schlickeiser, R. ; Schussler, F. ; Schulz, A. ; Schwanke, U. ; Schwemmer, S. ; Seglar-Arroyo, M. ; Settimo, M. ; Seyffert, A. S. ; Shafi, N. ; Shilon, I ; Shiningayamwe, K. ; Simoni, R. ; Sol, H. ; Spanier, F. ; Spir-Jacob, M. ; Stawarz, L. ; Steenkamp, R. ; Stegmann, Christian ; Steppa, Constantin Beverly ; Sushch, I ; Takahashi, T. ; Tavernet, J-P ; Tavernier, T. ; Taylor, A. M. ; Terrier, R. ; Tibaldo, L. ; Tiziani, D. ; Tluczykont, M. ; Trichard, C. ; Tsirou, M. ; Tsuji, N. ; Tuffs, R. ; Uchiyama, Y. ; van der Walt, J. ; van Eldik, C. ; van Rensburg, C. ; van Soelen, B. ; Vasileiadis, G. ; Veh, J. ; Venter, C. ; Viana, A. ; Vincent, P. ; Vink, J. ; Voisin, F. ; Voelk, H. J. ; Vuillaume, T. ; Wadiasingh, Z. ; Wagner, S. J. ; Wagner, P. ; Wagner, R. M. ; White, R. ; Wierzcholska, A. ; Willmann, P. ; Woernlein, A. ; Wouters, D. ; Yang, R. ; Zaborov, D. ; Zacharias, M. ; Zanin, R. ; Zdziarski, A. A. ; Zech, Alraune ; Zefi, F. ; Ziegler, A. ; Zorn, J. ; Zywucka, N.
Spectral lines are among the most powerful signatures for dark matter (DM) annihilation searches in very-high-energy gamma rays. The central region of the Milky Way halo is one of the most promising targets given its large amount of DM and proximity to Earth. We report on a search for a monoenergetic spectral line from self-annihilations of DM particles in the energy range from 300 GeV to 70 TeV using a two-dimensional maximum likelihood method taking advantage of both the spectral and spatial features of the signal versus background. The analysis makes use of Galactic center observations accumulated over ten years (2004-2014) with the H.E.S.S. array of ground-based Cherenkov telescopes. No significant gamma-ray excess above the background is found. We derive upper limits on the annihilation cross section (sigma v) for monoenergetic DM lines at the level of 4 x 10(-28) cm(3) s(-1) at 1 TeV, assuming an Einasto DM profile for the Milky Way halo. For a DM mass of 1 TeV, they improve over the previous ones by a factor of 6. The present constraints are the strongest obtained so far for DM particles in the mass range 300 GeV-70 TeV. Ground-based gamma-ray observations have reached sufficient sensitivity to explore relevant velocity-averaged cross sections for DM annihilation into two gamma-ray photons at the level expected from the thermal relic density for TeV DM particles.
Abdalla, Hassan E. ; Aharonian, Felix A. ; Benkhali, F. Ait ; Angüner, Ekrem Oǧuzhan ; Arakawa, M. ; Arcaro, C. ; Armand, C. ; Arrieta, M. ; Backes, M. ; Barnard, M. ; Becherini, Y. ; Tjus, J. Becker ; Berge, D. ; Bernhard, S. ; Bernloehr, K. ; Blackwell, R. ; Bottcher, M. ; Boisson, C. ; Bolmont, J. ; Bonnefoy, S. ; Bordas, Pol ; Bregeon, J. ; Brun, F. ; Brun, P. ; Bryan, M. ; Buechele, M. ; Bulik, T. ; Bylund, T. ; Capasso, M. ; Caroff, S. ; Carosi, A. ; Casanova, Sabrina ; Cerruti, M. ; Chakraborty, N. ; Chandra, S. ; Chaves, R. C. G. ; Chen, A. ; Colafrancesco, S. ; Condon, B. ; Davids, I. D. ; Dei, C. ; Devin, J. ; dewilt, P. ; Dirson, L. ; Djannati-Atai, A. ; Dmytriiev, A. ; Donath, A. ; Dyks, J. ; Egberts, Kathrin ; Emery, G. ; Ernenwein, J-P ; Eschbach, S. ; Fegan, S. ; Fiasson, A. ; Fontaine, G. ; Funk, S. ; Fuessling, M. ; Gabici, S. ; Gallant, Y. A. ; Garrigoux, T. ; Gate, F. ; Giavitto, G. ; Glawion, D. ; Glicenstein, J. F. ; Gottschall, D. ; Grondin, M-H ; Hahn, J. ; Haupt, M. ; Heinzelmann, G. ; Henri, G. ; Hermann, G. ; Hinton, J. A. ; Hofmann, W. ; Hoischen, Clemens ; Holch, T. L. ; Holler, M. ; Horns, D. ; Huber, D. ; Iwasaki, H. ; Jacholkowska, A. ; Jamrozy, M. ; Jankowsky, D. ; Jankowsky, F. ; Jouvin, L. ; Jung-Richardt, I ; Kastendieck, M. A. ; Katarzynski, K. ; Katsuragawa, M. ; Katz, U. ; Kerszberg, D. ; Khangulyan, D. ; Khelifi, B. ; King, J. ; Klepser, S. ; Kluzniak, W. ; Komin, Nu ; Kosack, K. ; Krakau, S. ; Kraus, M. ; Kruger, P. P. ; Lamanna, G. ; Lau, J. ; Lefaucheur, J. ; Lemiere, A. ; Lemoine-Goumard, M. ; Lenain, J-P ; Leser, Eva ; Lohse, T. ; Lorentz, M. ; Lopez-Coto, R. ; Lypova, I ; Malyshev, D. ; Marandon, V ; Marcowith, Alexandre ; Mariaud, C. ; Marti-Devesa, G. ; Marx, R. ; Maurin, G. ; Meintjes, P. J. ; Mitchell, A. M. W. ; Moderski, R. ; Mohamed, M. ; Mohrmann, L. ; Moulin, Emmanuel ; Murach, T. ; Nakashima, S. ; de Naurois, M. ; Ndiyavala, H. ; Niederwanger, F. ; Niemiec, J. ; Oakes, L. ; Odaka, H. ; Ohm, S. ; Ostrowski, M. ; Oya, I ; Padovani, M. ; Panter, M. ; Parsons, R. D. ; Perennes, C. ; Petrucci, P-O ; Peyaud, B. ; Piel, Q. ; Pita, S. ; Poireau, V ; Noel, A. Priyana ; Prokhorov, D. A. ; Prokoph, H. ; Puehlhofer, G. ; Punch, M. ; Quirrenbach, A. ; Raab, S. ; Rauth, R. ; Reimer, A. ; Reimer, O. ; Renaud, M. ; Rieger, F. ; Rinchiuso, L. ; Romoli, C. ; Rowel, G. ; Rudak, B. ; Ruiz-Velasco, E. ; Sahakian, V ; Saito, S. ; Sanchez, D. A. ; Santangelo, Andrea ; Sasaki, M. ; Schlickeiser, R. ; Schussler, F. ; Schulz, A. ; Schwanke, U. ; Schwemmer, S. ; Seglar-Arroyo, M. ; Senniappan, M. ; Seyffert, A. S. ; Shafi, N. ; Shilon, I ; Shiningayamwe, K. ; Simoni, R. ; Sinha, A. ; Sol, H. ; Spanier, F. ; Specovius, A. ; Spir-Jacob, M. ; Stawarz, L. ; Steenkamp, R. ; Stegmann, Christian ; Steppa, Constantin Beverly ; Sushch, I ; Takahashi, T. ; Tavernet, J-P ; Tavernier, T. ; Taylor, A. M. ; Terrier, R. ; Tibaldo, L. ; Tiziani, D. ; Tluczykont, M. ; Trichard, C. ; Tsirou, M. ; Tsuji, N. ; Tuffs, R. ; Uchiyama, Y. ; van der Walt, D. J. ; van Eldik, C. ; van Rensburg, C. ; van Soelen, B. ; Vasileiadis, G. ; Veh, J. ; Venter, C. ; Viana, A. ; Vincent, P. ; Vink, J. ; Voisin, F. ; Voelk, H. J. ; Vuillaume, T. ; Wadiasingh, Z. ; Wagner, S. J. ; Wagner, P. ; Wagner, R. M. ; White, R. ; Wierzcholska, A. ; Woernlein, A. ; Yang, R. ; Zaborov, D. ; Zacharias, M. ; Zanin, R. ; Zdziarski, A. A. ; Zech, Alraune ; Zefi, F. ; Ziegler, A. ; Zorn, J. ; Zywucka, N.
Context. NGC 253 is one of only two starburst galaxies found to emit gamma-rays from hundreds of MeV to multi-TeV energies. Accurate measurements of the very-high-energy (VHE; E> 100 GeV) and high-energy (HE; E > 60 MeV) spectra are crucial to study the underlying particle accelerators, probe the dominant emission mechanism(s) and to study cosmic-ray interaction and transport. Aims. The measurement of the VHE gamma-ray emission of NGC 253 published in 2012 by H.E.S.S. was limited by large systematic uncertainties. Here, the most up to date measurement of the gamma-ray spectrum of NGC 253 is investigated in both HE and VHE gamma-rays. Assuming a hadronic origin of the gamma-ray emission, the measurement uncertainties are propagated into the interpretation of the accelerated particle population. Methods. The data of H.E.S.S. observations are reanalysed using an updated calibration and analysis chain. The improved Fermi-LAT analysis employs more than 8 yr of data processed using pass 8. The cosmic-ray particle population is evaluated from the combined HE-VHE gamma-ray spectrum using NAIMA in the optically thin case. Results. The VHE gamma-ray energy spectrum is best fit by a power-law distribution with a flux normalisation of (1.34 +/- 0.14(stat) +/- 0.27(sys)) x 10(-13) cm(-2) s(-1) TeV-1 at 1 TeV - about 40% above, but compatible with the value obtained in Abramowski et al. (2012). The spectral index Gamma = 2.39 +/- 0.14(stat) +/- 0.25(sys) is slightly softer than but consistent with the previous measurement within systematic errors. In the Fermi energy range an integral flux of F(E > 60 MeV) = (1.56 +/- 0.28(stat) +/- 0.15(sys)) x 10(-8) cm(-2) s(-1) is obtained. At energies above similar to 3 GeV the HE spectrum is consistent with a power-law ranging into the VHE part of the spectrum measured by H.E.S.S. with an overall spectral index Gamma = 2.22 +/- 0.06(stat). Conclusions. Two scenarios for the starburst nucleus are tested, in which the gas in the starburst nucleus acts as either a thin or a thick target for hadronic cosmic rays accelerated by the individual sources in the nucleus. In these two models, the level to which NGC 253 acts as a calorimeter is estimated to a range of f(cal) = 0.1 to 1 while accounting for the measurement uncertainties. The presented spectrum is likely to remain the most accurate measurements until the Cherenkov Telescope Array (CTA) has collected a substantial set of data towards NGC 253.
Hofmann, Ch. ; Sandig, V. ; Kirillova, I. ; Jennings, G. ; Rudolph, Michael ; Schlag, Peter M. ; Strauss, M.