@article{ActisAgnettaAharonianetal.2011, author = {Actis, M. and Agnetta, G. and Aharonian, Felix A. and Akhperjanian, A. G. and Aleksic, J. and Aliu, E. and Allan, D. and Allekotte, I. and Antico, F. and Antonelli, L. A. and Antoranz, P. and Aravantinos, A. and Arlen, T. and Arnaldi, H. and Artmann, S. and Asano, K. and Asorey, H. G. and Baehr, J. and Bais, A. and Baixeras, C. and Bajtlik, S. and Balis, D. and Bamba, A. and Barbier, C. and Barcelo, M. and Barnacka, Anna and Barnstedt, J{\"u}rgen and de Almeida, U. Barres and Barrio, J. A. and Basso, S. and Bastieri, D. and Bauer, C. and Becerra Gonzalez, J. and Becherini, Yvonne and Bechtol, K. C. and Becker, J. and Beckmann, Volker and Bednarek, W. and Behera, B. and Beilicke, M. and Belluso, M. and Benallou, M. and Benbow, W. and Berdugo, J. and Berger, K. and Bernardino, T. and Bernl{\"o}hr, K. and Biland, A. and Billotta, S. and Bird, T. and Birsin, E. and Bissaldi, E. and Blake, S. and Blanch Bigas, O. and Bobkov, A. A. and Bogacz, L. and Bogdan, M. and Boisson, Catherine and Boix Gargallo, J. and Bolmont, J. and Bonanno, G. and Bonardi, A. and Bonev, T. and Borkowski, Janett and Botner, O. and Bottani, A. and Bourgeat, M. and Boutonnet, C. and Bouvier, A. and Brau-Nogue, S. and Braun, I. and Bretz, T. and Briggs, M. S. and Brun, Pierre and Brunetti, L. and Buckley, H. and Bugaev, V. and Buehler, R. and Bulik, Tomasz and Busetto, G. and Buson, S. and Byrum, K. and Cailles, M. and Cameron, R. A. and Canestrari, R. and Cantu, S. and Carmona, E. and Carosi, A. and Carr, John and Carton, P. H. and Casiraghi, M. and Castarede, H. and Catalano, O. and Cavazzani, S. and Cazaux, S. and Cerruti, B. and Cerruti, M. and Chadwick, M. and Chiang, J. and Chikawa, M. and Cieslar, M. and Ciesielska, M. and Cillis, A. N. and Clerc, C. and Colin, P. and Colome, J. and Compin, M. and Conconi, P. and Connaughton, V. and Conrad, Jan and Contreras, J. 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P. and Videla, M. and Vincent, P. and Vink, J. and Vlahakis, N. and Vlahos, L. and Vogler, P. and Vollhardt, A. and Volpe, F. and Von Gunten, H. P. and Vorobiov, S. and Wagner, S. and Wagner, R. M. and Wagner, B. and Wakely, S. P. and Walter, P. and Walter, R. and Warwick, R. and Wawer, P. and Wawrzaszek, R. and Webb, N. and Wegner, P. and Weinstein, A. and Weitzel, Q. and Welsing, R. and Wetteskind, H. and White, R. and Wierzcholska, A. and Wilkinson, M. I. and Williams, D. A. and Winde, M. and Wischnewski, R. and Wisniewski, L. and Wolczko, A. and Wood, M. and Xiong, Q. and Yamamoto, T. and Yamaoka, K. and Yamazaki, R. and Yanagita, S. and Yoffo, B. and Yonetani, M. and Yoshida, A. and Yoshida, T. and Yoshikoshi, T. and Zabalza, V. and Zagdanski, A. and Zajczyk, A. and Zdziarski, A. and Zech, Alraune and Zietara, K. and Ziolkowski, P. and Zitelli, V. and Zychowski, P.}, title = {Design concepts for the Cherenkov Telescope Array CTA an advanced facility for ground-based high-energy gamma-ray astronomy}, series = {Experimental astronomy : an international journal on astronomical instrumentation and data analysis}, volume = {32}, journal = {Experimental astronomy : an international journal on astronomical instrumentation and data analysis}, number = {3}, publisher = {Springer}, address = {Dordrecht}, organization = {CTA Consortium}, issn = {0922-6435}, doi = {10.1007/s10686-011-9247-0}, pages = {193 -- 316}, year = {2011}, abstract = {Ground-based gamma-ray astronomy has had a major breakthrough with the impressive results obtained using systems of imaging atmospheric Cherenkov telescopes. Ground-based gamma-ray astronomy has a huge potential in astrophysics, particle physics and cosmology. CTA is an international initiative to build the next generation instrument, with a factor of 5-10 improvement in sensitivity in the 100 GeV-10 TeV range and the extension to energies well below 100 GeV and above 100 TeV. CTA will consist of two arrays (one in the north, one in the south) for full sky coverage and will be operated as open observatory. The design of CTA is based on currently available technology. This document reports on the status and presents the major design concepts of CTA.}, language = {en} } @unpublished{AcharyaActisAghajanietal.2013, author = {Acharya, B. S. and Actis, M. and Aghajani, T. and Agnetta, G. and Aguilar, J. and Aharonian, Felix A. and Ajello, M. and Akhperjanian, A. G. and Alcubierre, M. and Aleksic, J. and Alfaro, R. and Aliu, E. and Allafort, A. 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M. and Mirzoyan, R. and Mizuno, T. and Moal, B. and Moderski, R. and Mognet, I. and Molinari, E. and Molinaro, M. and Montaruli, T. and Monteiro, I. and Moore, P. and Moralejo Olaizola, A. and Mordalska, M. and Morello, C. and Mori, K. and Mottez, F. and Moudden, Y. and Moulin, E. and Mrusek, I. and Mukherjee, R. and Munar-Adrover, P. and Muraishi, H. and Murase, K. and Murphy, A. and Nagataki, S. and Naito, T. and Nakajima, D. and Nakamori, T. and Nakayama, K. and Naumann, C. L. and Naumann, D. and Naumann-Godo, M. and Nayman, P. and Nedbal, D. and Neise, D. and Nellen, L. and Neustroev, V. and Neyroud, N. and Nicastro, L. and Nicolau-Kuklinski, J. and Niedzwiecki, A. and Niemiec, J. and Nieto, D. and Nikolaidis, A. and Nishijima, K. and Nolan, S. and Northrop, R. and Nosek, D. and Nowak, N. and Nozato, A. and O'Brien, P. and Ohira, Y. and Ohishi, M. and Ohm, S. and Ohoka, H. and Okuda, T. and Okumura, A. and Olive, J. -F. and Ong, R. A. and Orito, R. and Orr, M. and Osborne, J. and Ostrowski, M. and Otero, L. A. and Otte, N. and Ovcharov, E. and Oya, I. and Ozieblo, A. and Padilla, L. and Paiano, S. and Paillot, D. and Paizis, A. and Palanque, S. and Palatka, M. and Pallota, J. and Panagiotidis, K. and Panazol, J. -L. and Paneque, D. and Panter, M. and Paoletti, R. and Papayannis, Alexandros and Papyan, G. and Paredes, J. M. and Pareschi, G. and Parks, G. and Parraud, J. -M. and Parsons, D. and Arribas, M. Paz and Pech, M. and Pedaletti, G. and Pelassa, V. and Pelat, D. and Perez, M. D. C. and Persic, M. and Petrucci, P-O and Peyaud, B. and Pichel, A. and Pita, S. and Pizzolato, F. and Platos, L. and Platzer, R. and Pogosyan, L. and Pohl, M. and Pojmanski, G. and Ponz, J. D. and Potter, W. and Poutanen, J. and Prandini, E. and Prast, J. and Preece, R. and Profeti, F. and Prokoph, H. and Prouza, M. and Proyetti, M. and Puerto-Gimenez, I. and Puehlhofer, G. and Puljak, I. and Punch, M. and Pyziol, R. and Quel, E. J. and Quinn, J. and Quirrenbach, A. and Racero, E. and Rajda, P. J. and Ramon, P. and Rando, R. and Rannot, R. C. and Rataj, M. and Raue, M. and Reardon, P. and Reimann, O. and Reimer, A. and Reimer, O. and Reitberger, K. and Renaud, M. and Renner, S. and Reville, B. and Rhode, W. and Ribo, M. and Ribordy, M. and Richer, M. G. and Rico, J. and Ridky, J. and Rieger, F. and Ringegni, P. and Ripken, J. and Ristori, P. R. and Riviere, A. and Rivoire, S. and Rob, L. and Roeser, U. and Rohlfs, R. and Rojas, G. and Romano, Patrizia and Romaszkan, W. and Romero, G. E. and Rosen, S. and Lees, S. Rosier and Ross, D. and Rouaix, G. and Rousselle, J. and Rousselle, S. and Rovero, A. C. and Roy, F. and Royer, S. and Rudak, B. and Rulten, C. and Rupinski, M. and Russo, F. and Ryde, F. and Sacco, B. and Saemann, E. O. and Saggion, A. and Safiakian, V. and Saito, K. and Saito, T. and Saito, Y. and Sakaki, N. and Sakonaka, R. and Salini, A. and Sanchez, F. and Sanchez-Conde, M. and Sandoval, A. and Sandaker, H. and Sant'Ambrogio, E. and Santangelo, A. and Santos, E. M. and Sanuy, A. and Sapozhnikov, L. and Sarkar, S. and Sartore, N. and Sasaki, H. and Satalecka, K. and Sawada, M. and Scalzotto, V. and Scapin, V. and Scarcioffolo, M. and Schafer, J. and Schanz, T. and Schlenstedt, S. and Schlickeiser, R. and Schmidt, T. and Schmoll, J. and Schovanek, P. and Schroedter, M. and Schultz, C. and Schultze, J. and Schulz, A. and Schure, K. and Schwab, T. and Schwanke, U. and Schwarz, J. and Schwarzburg, S. and Schweizer, T. and Schwemmer, S. and Segreto, A. and Seiradakis, J. -H. and Sembroski, G. H. and Seweryn, K. and Sharma, M. and Shayduk, M. and Shellard, R. C. and Shi, J. and Shibata, T. and Shibuya, A. and Shum, E. and Sidoli, L. and Sidz, M. and Sieiro, J. and Sikora, M. and Silk, J. and Sillanpaa, A. and Singh, B. B. and Sitarek, J. and Skole, C. and Smareglia, R. and Smith, A. and Smith, D. and Smith, J. and Smith, N. and Sobczynska, D. and Sol, H. and Sottile, G. and Sowinski, M. and Spanier, F. and Spiga, D. and Spyrou, S. and Stamatescu, V. and Stamerra, A. and Starling, R. and Stawarz, L. and Steenkamp, R. and Stegmann, Christian and Steiner, S. and Stergioulas, N. and Sternberger, R. and Sterzel, M. and Stinzing, F. and Stodulski, M. and Straumann, U. and Strazzeri, E. and Stringhetti, L. and Suarez, A. and Suchenek, M. and Sugawara, R. and Sulanke, K. -H. and Sun, S. and Supanitsky, A. D. and Suric, T. and Sutcliffe, P. and Sykes, J. and Szanecki, M. and Szepieniec, T. and Szostek, A. and Tagliaferri, G. and Tajima, H. and Takahashi, H. and Takahashi, K. and Takalo, L. and Takami, H. and Talbot, C. and Tammi, J. and Tanaka, M. and Tanaka, S. and Tasan, J. and Tavani, M. and Tavernet, J. -P. and Tejedor, L. A. and Telezhinsky, Igor O. and Temnikov, P. and Tenzer, C. and Terada, Y. and Terrier, R. and Teshima, M. and Testa, V. and Tezier, D. and Thuermann, D. and Tibaldo, L. and Tibolla, O. and Tiengo, A. and Tluczykont, M. and Todero Peixoto, C. J. and Tokanai, F. and Tokarz, M. and Toma, K. and Torii, K. and Tornikoski, M. and Torres, D. F. and Torres, M. and Tosti, G. and Totani, T. and Toussenel, C. and Tovmassian, G. and Travnicek, P. and Trifoglio, M. and Troyano, I. and Tsinganos, K. and Ueno, H. and Umehara, K. and Upadhya, S. S. and Usher, T. and Uslenghi, M. and Valdes-Galicia, J. F. and Vallania, P. and Vallejo, G. and van Driel, W. and van Eldik, C. and Vandenbrouke, J. and Vanderwalt, J. and Vankov, H. and Vasileiadis, G. and Vassiliev, V. and Veberic, D. and Vegas, I. and Vercellone, S. and Vergani, S. and Veyssiere, C. and Vialle, J. P. and Viana, A. and Videla, M. and Vincent, P. and Vincent, S. and Vink, J. and Vlahakis, N. and Vlahos, L. and Vogler, P. and Vollhardt, A. and von Gunten, H. P. and Vorobiov, S. and Vuerli, C. and Waegebaert, V. and Wagner, R. and Wagner, R. G. and Wagner, S. and Wakely, S. P. and Walter, R. and Walther, T. and Warda, K. and Warwick, R. and Wawer, P. and Wawrzaszek, R. and Webb, N. and Wegner, P. and Weinstein, A. and Weitzel, Q. and Welsing, R. and Werner, M. and Wetteskind, H. and White, R. and Wierzcholska, A. and Wiesand, S. and Wilkinson, M. and Williams, D. A. and Willingale, R. and Winiarski, K. and Wischnewski, R. and Wisniewski, L. and Wood, M. and Woernlein, A. and Xiong, Q. and Yadav, K. K. and Yamamoto, H. and Yamamoto, T. and Yamazaki, R. and Yanagita, S. and Yebras, J. M. and Yelos, D. and Yoshida, A. and Yoshida, T. and Yoshikoshi, T. and Zabalza, V. and Zacharias, M. and Zajczyk, A. and Zanin, R. and Zdziarski, A. and Zech, Alraune and Zhao, A. and Zhou, X. and Zietara, K. and Ziolkowski, J. and Ziolkowski, P. and Zitelli, V. and Zurbach, C. and Zychowski, P.}, title = {Introducing the CTA concept}, series = {Astroparticle physics}, volume = {43}, journal = {Astroparticle physics}, number = {2}, publisher = {Elsevier}, address = {Amsterdam}, organization = {CTA Consortium}, issn = {0927-6505}, doi = {10.1016/j.astropartphys.2013.01.007}, pages = {3 -- 18}, year = {2013}, abstract = {The Cherenkov Telescope Array (CTA) is a new observatory for very high-energy (VHE) gamma rays. CTA has ambitions science goals, for which it is necessary to achieve full-sky coverage, to improve the sensitivity by about an order of magnitude, to span about four decades of energy, from a few tens of GeV to above 100 TeV with enhanced angular and energy resolutions over existing VHE gamma-ray observatories. An international collaboration has formed with more than 1000 members from 27 countries in Europe, Asia, Africa and North and South America. In 2010 the CTA Consortium completed a Design Study and started a three-year Preparatory Phase which leads to production readiness of CTA in 2014. In this paper we introduce the science goals and the concept of CTA, and provide an overview of the project.}, language = {en} } @article{AceroAloisioAmansetal.2017, author = {Acero, F. and Aloisio, R. and Amans, J. and Amato, Elena and Antonelli, L. A. and Aramo, C. and Armstrong, T. and Arqueros, F. and Asano, Katsuaki and Ashley, M. and Backes, M. and Balazs, C. and Balzer, A. and Bamba, Aya and Barkov, Maxim and Barrio, J. A. and Benbow, Wystan and Bernloehr, K. and Beshley, V. and Bigongiari, C. and Biland, A. and Bilinsky, A. and Bissaldi, Elisabetta and Biteau, J. and Blanch, O. and Blasi, P. and Blazek, J. and Boisson, C. and Bonanno, G. and Bonardi, A. and Bonavolonta, C. and Bonnoli, G. and Braiding, C. and Brau-Nogue, S. and Bregeon, J. and Brown, A. M. and Bugaev, V. and Bulgarelli, A. and Bulik, T. and Burton, Michael and Burtovoi, A. and Busetto, G. and Bottcher, M. and Cameron, R. and Capalbi, M. and Caproni, Anderson and Caraveo, P. and Carosi, R. and Cascone, E. and Cerruti, M. and Chaty, Sylvain and Chen, A. and Chen, X. and Chernyakova, M. and Chikawa, M. and Chudoba, J. and Cohen-Tanugi, J. and Colafrancesco, S. and Conforti, V. and Contreras, J. L. and Costa, A. and Cotter, G. and Covino, Stefano and Covone, G. and Cumani, P. and Cusumano, G. and Daniel, M. and Dazzi, F. and De Angelis, A. and De Cesare, G. and De Franco, A. and De Frondat, F. and Dal Pino, E. M. de Gouveia and De Lisio, C. and Lopez, R. de los Reyes and De Lotto, B. and de Naurois, M. and De Palma, F. and Del Santo, M. and Delgado, C. and della Volpe, D. and Di Girolamo, T. and Di Giulio, C. and Di Pierro, F. and Di Venere, L. and Doro, M. and Dournaux, J. and Dumas, D. and Dwarkadas, Vikram V. and Diaz, C. and Ebr, J. and Egberts, Kathrin and Einecke, S. and Elsaesser, D. and Eschbach, S. and Falceta-Goncalves, D. and Fasola, G. and Fedorova, E. and Fernandez-Barral, A. and Ferrand, Gilles and Fesquet, M. and Fiandrini, E. and Fiasson, A. and Filipovic, Miroslav D. and Fioretti, V. and Font, L. and Fontaine, Gilles and Franco, F. J. and Freixas Coromina, L. and Fujita, Yutaka and Fukui, Y. and Funk, S. and Forster, A. and Gadola, A. and Lopez, R. Garcia and Garczarczyk, M. and Giglietto, N. and Giordano, F. and Giuliani, A. and Glicenstein, J. and Gnatyk, R. and Goldoni, P. and Grabarczyk, T. and Graciani, R. and Graham, J. and Grandi, P. and Granot, Jonathan and Green, A. J. and Griffiths, S. and Gunji, S. and Hakobyan, H. and Hara, S. and Hassan, T. and Hayashida, M. and Heller, M. and Helo, J. C. and Hinton, J. and Hnatyk, B. and Huet, J. and Huetten, M. and Humensky, T. B. and Hussein, M. and Horandel, J. and Ikeno, Y. and Inada, T. and Inome, Y. and Inoue, S. and Inoue, T. and Inoue, Y. and Ioka, K. and Iori, Maurizio and Jacquemier, J. and Janecek, P. and Jankowsky, D. and Jung, I. and Kaaret, P. and Katagiri, H. and Kimeswenger, S. and Kimura, Shigeo S. and Knodlseder, J. and Koch, B. and Kocot, J. and Kohri, K. and Komin, N. and Konno, Y. and Kosack, K. and Koyama, S. and Kraus, Michaela and Kubo, Hidetoshi and Mezek, G. Kukec and Kushida, J. and La Palombara, N. and Lalik, K. and Lamanna, G. and Landt, H. and Lapington, J. and Laporte, P. and Lee, S. and Lees, J. and Lefaucheur, J. and Lenain, J. -P. and Leto, Giuseppe and Lindfors, E. and Lohse, T. and Lombardi, S. and Longo, F. and Lopez, M. and Lucarelli, F. and Luque-Escamilla, Pedro Luis and Lopez-Coto, R. and Maccarone, M. C. and Maier, G. and Malaguti, G. and Mandat, D. and Maneva, G. and Mangano, S. and Marcowith, A. and Marti, J. and Martinez, M. and Martinez, G. and Masuda, S. and Maurin, G. and Maxted, N. and Melioli, Claudio and Mineo, T. and Mirabal, N. and Mizuno, T. and Moderski, R. and Mohammed, M. and Montaruli, T. and Moralejo, A. and Mori, K. and Morlino, G. and Morselli, A. and Moulin, E. and Mukherjee, R. and Mundell, C. and Muraishi, H. and Murase, Kohta and Nagataki, Shigehiro and Nagayoshi, T. and Naito, T. and Nakajima, D. and Nakamori, T. and Nemmen, R. and Niemiec, Jacek and Nieto, D. and Nievas-Rosillo, M. and Nikolajuk, M. and Nishijima, K. and Noda, K. and Nogues, L. and Nosek, D. and Novosyadlyj, B. and Nozaki, S. and Ohira, Yutaka and Ohishi, M. and Ohm, S. and Okumura, A. and Ong, R. A. and Orito, R. and Orlati, A. and Ostrowski, M. and Oya, I. and Padovani, Marco and Palacio, J. and Palatka, M. and Paredes, Josep M. and Pavy, S. and Persic, M. and Petrucci, P. and Petruk, Oleh and Pisarski, A. and Pohl, Martin and Porcelli, A. and Prandini, E. and Prast, J. and Principe, G. and Prouza, M. and Pueschel, Elisa and Puelhofer, G. and Quirrenbach, A. and Rameez, M. and Reimer, O. and Renaud, M. and Ribo, M. and Rico, J. and Rizi, V. and Rodriguez, J. and Fernandez, G. Rodriguez and Rodriguez Vazquez, J. J. and Romano, Patrizia and Romeo, G. and Rosado, J. and Rousselle, J. and Rowell, G. and Rudak, B. and Sadeh, I. and Safi-Harb, S. and Saito, T. and Sakaki, N. and Sanchez, D. and Sangiorgi, P. and Sano, H. and Santander, M. and Sarkar, S. and Sawada, M. and Schioppa, E. J. and Schoorlemmer, H. and Schovanek, P. and Schussler, F. and Sergijenko, O. and Servillat, M. and Shalchi, A. and Shellard, R. C. and Siejkowski, H. and Sillanpaa, A. and Simone, D. and Sliusar, V. and Sol, H. and Stanic, S. and Starling, R. and Stawarz, L. and Stefanik, S. and Stephan, M. and Stolarczyk, T. and Szanecki, M. and Szepieniec, T. and Tagliaferri, G. and Tajima, H. and Takahashi, M. and Takeda, J. and Tanaka, M. and Tanaka, S. and Tejedor, L. A. and Telezhinsky, Igor O. and Temnikov, P. and Terada, Y. and Tescaro, D. and Teshima, M. and Testa, V. and Thoudam, S. and Tokanai, F. and Torres, D. F. and Torresi, E. and Tosti, G. and Townsley, C. and Travnicek, P. and Trichard, C. and Trifoglio, M. and Tsujimoto, S. and Vagelli, V. and Vallania, P. and Valore, L. and van Driel, W. and van Eldik, C. and Vandenbroucke, Justin and Vassiliev, V. and Vecchi, M. and Vercellone, Stefano and Vergani, S. and Vigorito, C. and Vorobiov, S. and Vrastil, M. and Vazquez Acosta, M. L. and Wagner, S. J. and Wagner, R. and Wakely, S. P. and Walter, R. and Ward, J. E. and Watson, J. J. and Weinstein, A. and White, M. and White, R. and Wierzcholska, A. and Wilcox, P. and Williams, D. A. and Wischnewski, R. and Wojcik, P. and Yamamoto, T. and Yamamoto, H. and Yamazaki, Ryo and Yanagita, S. and Yang, L. and Yoshida, T. and Yoshida, M. and Yoshiike, S. and Yoshikoshi, T. and Zacharias, M. and Zampieri, L. and Zanin, R. and Zavrtanik, M. and Zavrtanik, D. and Zdziarski, A. and Zech, Alraune and Zechlin, Hannes and Zhdanov, V. and Ziegler, A. and Zorn, J.}, title = {Prospects for Cherenkov Telescope Array Observations of the Young Supernova Remnant RX J1713.7-3946}, series = {The astrophysical journal : an international review of spectroscopy and astronomical physics}, volume = {840}, journal = {The astrophysical journal : an international review of spectroscopy and astronomical physics}, number = {2}, publisher = {IOP Publ. Ltd.}, address = {Bristol}, issn = {0004-637X}, doi = {10.3847/1538-4357/aa6d67}, pages = {14}, year = {2017}, abstract = {We perform simulations for future Cherenkov Telescope Array (CTA) observations of RX J1713.7-3946, a young supernova remnant (SNR) and one of the brightest sources ever discovered in very high energy (VHE) gamma rays. Special attention is paid to exploring possible spatial (anti) correlations of gamma rays with emission at other wavelengths, in particular X-rays and CO/H I emission. We present a series of simulated images of RX J1713.7-3946 for CTA based on a set of observationally motivated models for the gamma-ray emission. In these models, VHE gamma rays produced by high-energy electrons are assumed to trace the nonthermal X-ray emission observed by XMM-Newton, whereas those originating from relativistic protons delineate the local gas distributions. The local atomic and molecular gas distributions are deduced by the NANTEN team from CO and H I observations. Our primary goal is to show how one can distinguish the emission mechanism(s) of the gamma rays (i.e., hadronic versus leptonic, or a mixture of the two) through information provided by their spatial distribution, spectra, and time variation. This work is the first attempt to quantitatively evaluate the capabilities of CTA to achieve various proposed scientific goals by observing this important cosmic particle accelerator.}, language = {en} } @article{DeAngelisTatischeffGrenieretal.2018, author = {De Angelis, A. and Tatischeff, V. and Grenier, I. A. and McEnery, J. and Mallamaci, Manuela and Tavani, M. and Oberlack, U. and Hanlon, L. and Walter, R. and Argan, A. and Von Ballmoos, P. and Bulgarelli, A. and Bykov, A. and Hernanz, M. and Kanbach, G. and Kuvvetli, I. and Pearce, M. and Zdziarski, A. and Conrad, J. and Ghisellini, G. and Harding, A. and Isern, J. and Leising, M. and Longo, F. and Madejski, G. and Martinez, M. and Mazziotta, Mario Nicola and Paredes, J. M. and Pohl, Martin and Rando, R. and Razzano, M. and Aboudan, A. and Ackermann, M. and Addazi, A. and Ajello, M. and Albertus, C. and Alvarez, J. M. and Ambrosi, G. and Anton, S. and Antonelli, L. A. and Babic, A. and Baibussinov, B. and Balbom, M. and Baldini, L. and Balman, S. and Bambi, C. and Barres de Almeida, U. and Barrio, J. A. and Bartels, R. and Bastieri, D. and Bednarek, W. and Bernard, D. and Bernardini, E. and Bernasconi, T. and Bertucci, B. and Biland, A. and Bissaldi, E. and Boettcher, M. and Bonvicini, V. and Bosch-Ramon, V. and Bottacini, E. and Bozhilov, V. and Bretz, T. and Branchesi, M. and Brdar, V. and Bringmann, T. and Brogna, A. and Jorgensen, C. Budtz and Busetto, G. and Buson, S. and Busso, M. and Caccianiga, A. and Camera, S. and Campana, R. and Caraveo, P. and Cardillo, M. and Carlson, P. and Celestin, S. and Cermeno, M. and Chen, A. and Cheung, C. C. and Churazov, E. and Ciprini, S. and Coc, A. and Colafrancesco, S. and Coleiro, A. and Collmar, W. and Coppi, P. and Curado da Silva, R. and Cutini, S. and De Lotto, B. and de Martino, D. and De Rosa, A. and Del Santo, M. and Delgado, L. and Diehl, R. and Dietrich, S. and Dolgov, A. D. and Dominguez, A. and Prester, D. Dominis and Donnarumma, I. and Dorner, D. and Doro, M. and Dutra, M. and Elsaesser, D. and Fabrizio, M. and Fernandez-Barral, A. and Fioretti, V. and Foffano, L. and Formato, V. and Fornengo, N. and Foschini, L. and Franceschini, A. and Franckowiak, A. and Funk, S. and Fuschino, F. and Gaggero, D. and Galanti, G. and Gargano, F. and Gasparrini, D. and Gehrz, R. and Giammaria, P. and Giglietto, N. and Giommi, P. and Giordano, F. and Giroletti, M. and Ghirlanda, G. and Godinovic, N. and Gouiffes, C. and Grove, J. E. and Hamadache, C. and Hartmann, D. H. and Hayashida, M. and Hryczuk, A. and Jean, P. and Johnson, T. and Jose, J. and Kaufmann, S. and Khelifi, B. and Kiener, J. and Knodlseder, J. and Kolem, M. and Kopp, J. and Kozhuharov, V. and Labanti, C. and Lalkovski, S. and Laurent, P. and Limousin, O. and Linares, M. and Lindfors, E. and Lindner, M. and Liu, J. and Lombardi, S. and Loparco, F. and Lopez-Coto, R. and Lopez Moya, M. and Lott, B. and Lubrano, P. and Malyshev, D. and Mankuzhiyil, N. and Mannheim, K. and Marcha, M. J. and Marciano, A. and Marcote, B. and Mariotti, M. and Marisaldi, M. and McBreen, S. and Mereghetti, S. and Merle, A. and Mignani, R. and Minervini, G. and Moiseev, A. and Morselli, A. and Moura, F. and Nakazawa, K. and Nava, L. and Nieto, D. and Orienti, M. and Orio, M. and Orlando, E. and Orleanski, P. and Paiano, S. and Paoletti, R. and Papitto, A. and Pasquato, M. and Patricelli, B. and Perez-Garcia, M. A. and Persic, M. and Piano, G. and Pichel, A. and Pimenta, M. and Pittori, C. and Porter, T. and Poutanen, J. and Prandini, E. and Prantzos, N. and Produit, N. and Profumo, S. and Queiroz, F. S. and Raino, S. and Raklev, A. and Regis, M. and Reichardt, I. and Rephaeli, Y. and Rico, J. and Rodejohann, W. and Fernandez, G. Rodriguez and Roncadelli, M. and Roso, L. and Rovero, A. and Ruffini, R. and Sala, G. and Sanchez-Conde, M. A. and Santangelo, A. and Parkinson, P. Saz and Sbarrato, T. and Shearer, A. and Shellard, R. and Short, K. and Siegert, T. and Siqueira, C. and Spinelli, P. and Stamerra, A. and Starrfield, S. and Strong, A. and Strumke, I. and Tavecchio, F. and Taverna, R. and Terzic, T. and Thompson, D. J. and Tibolla, O. and Torres, D. F. and Turolla, R. and Ulyanov, A. and Ursi, A. and Vacchi, A. and Van den Abeele, J. and Vankova-Kirilovai, G. and Venter, C. and Verrecchia, F. and Vincent, P. and Wang, X. and Weniger, C. and Wu, X. and Zaharijas, G. and Zampieri, L. and Zane, S. and Zimmer, S. and Zoglauer, A.}, title = {Science with e-ASTROGAM A space mission for MeV-GeV gamma-ray astrophysics}, series = {Journal of High Energy Astrophysics}, volume = {19}, journal = {Journal of High Energy Astrophysics}, publisher = {Elsevier}, address = {Amsterdam}, organization = {e-ASTROGAM Collaboration}, issn = {2214-4048}, doi = {10.1016/j.jheap.2018.07.001}, pages = {1 -- 106}, year = {2018}, language = {en} } @article{AhnenAnsoldiAntonellietal.2018, author = {Ahnen, M. L. and Ansoldi, S. and Antonelli, L. A. and Arcaro, C. and Babic, A. and Banerjee, B. and Bangale, P. and Barres de Almeida, U. and Barrio, J. A. and Gonzalez, J. Becerra and Bednarek, W. and Bernardini, E. and Berti, A. and Bhattacharyya, W. and Blanch, O. and Bonnoli, G. and Carosi, R. and Carosi, A. and Chatterjee, A. and Colak, S. M. and Colin, P. and Colombo, E. and Contreras, J. L. and Cortina, J. and Covino, S. and Cumani, P. and Da Vela, P. and Dazzi, F. and De Angelis, A. and De Lotto, B. and Delfino, M. and Delgado, Jose Miguel Martins and Di Pierro, F. and Doert, M. and Dominguez, A. and Prester, D. Dominis and Doro, M. and Glawion, D. Eisenacher and Engelkemeier, M. and Ramazani, V. Fallah and Fernandez-Barral, A. and Fidalgo, D. and Fonseca, M. V. and Font, L. and Fruck, C. and Galindo, D. and Lopez, R. J. Garcia and Garczarczyk, M. and Gaug, M. and Giammaria, P. and Godinovic, N. and Gora, D. and Guberman, D. and Hadasch, D. and Hahn, A. and Hassan, T. and Hayashida, M. and Herrera, J. and Hose, J. and Hrupec, D. and Ishio, K. and Konno, Y. and Kubo, H. and Kushida, J. and Kuvezdic, D. and Lelas, D. and Lindfors, E. and Lombardi, S. and Longo, F. and Lopez, M. and Maggio, C. and Majumdar, P. and Makariev, M. and Maneva, G. and Manganaro, M. and Maraschi, L. and Mariotti, M. and Martinez, M. and Mazin, D. and Menzel, U. and Minev, M. and Miranda, J. M. and Mirzoyan, R. and Moralejo, A. and Moreno, V. and Moretti, E. and Nagayoshi, T. and Neustroev, V. and Niedzwiecki, A. and Nievas Rosillo, M. and Nigro, C. and Nilsson, K. and Ninci, D. and Nishijima, K. and Noda, K. and Nogues, L. and Paiano, S. and Palacio, J. and Paneque, D. and Paoletti, R. and Paredes, J. M. and Pedaletti, G. and Peresano, M. and Perri, L. and Persic, M. and Moroni, P. G. Prada and Prandini, E. and Puljak, I. and Garcia, J. R. and Reichardt, I. and Ribo, M. and Rico, J. and Righi, C. and Rugliancich, A. and Saito, T. and Satalecka, K. and Schroeder, S. and Schweizer, T. and Shore, S. N. and Sitarek, J. and Snidaric, I. and Sobczynska, D. and Stamerra, A. and Strzys, M. and Suric, T. and Takalo, L. and Tavecchio, F. and Temnikov, P. and Terzic, T. and Teshima, M. and Torres-Alba, N. and Treves, A. and Tsujimoto, S. and Vanzo, G. and Vazquez Acosta, M. and Vovk, I. and Ward, J. E. and Will, M. and Zaric, D. and Arbet-Engels, A. and Baack, D. and Balbo, M. and Biland, A. and Blank, M. and Bretz, T. and Bruegge, K. and Bulinski, M. and Buss, J. and Dmytriiev, A. and Dorner, D. and Einecke, S. and Elsaesser, D. and Herbst, T. and Hildebrand, D. and Kortmann, L. and Linhoff, L. and Mahlke, M. and Mannheim, K. and Mueller, S. A. and Neise, D. and Neronov, A. and Noethe, M. and Oberkirch, J. and Paravac, A. and Rhode, W. and Schleicher, B. and Schulz, F. and Sedlaczek, K. and Shukla, A. and Sliusar, V. and Walter, R. and Archer, A. and Benbow, W. and Bird, R. and Brose, Robert and Buckley, J. H. and Bugaev, V. and Christiansen, J. L. and Cui, W. and Daniel, M. K. and Falcone, A. and Feng, Q. and Finley, J. P. and Gillanders, G. H. and Gueta, O. and Hanna, D. and Hervet, O. and Holder, J. and Hughes, G. and Huetten, M. and Humensky, T. B. and Johnson, C. A. and Kaaret, P. and Kar, P. and Kelley-Hoskins, N. and Kertzman, M. and Kieda, D. and Krause, M. and Krennrich, F. and Kumar, S. and Lang, M. J. and Lin, T. T. Y. and Maier, G. and McArthur, S. and Moriarty, P. and Mukherjee, R. and Ong, R. A. and Otte, A. N. and Park, N. and Petrashyk, A. and Pichel, A. and Pohl, Martin and Quinn, J. and Ragan, K. and Reynolds, P. T. and Richards, G. T. and Roache, E. and Rovero, A. C. and Rulten, C. and Sadeh, I. and Santander, M. and Sembroski, G. H. and Shahinyan, K. and Sushch, Iurii and Tyler, J. and Wakely, S. P. and Weinstein, A. and Wells, R. M. and Wilcox, P. and Wilhel, A. and Williams, D. A. and Williamson, T. J. and Zitzer, B. and Perri, M. and Verrecchia, F. and Leto, C. and Villata, M. and Raiteri, C. M. and Jorstad, S. G. and Larionov, V. M. and Blinov, D. A. and Grishina, T. S. and Kopatskaya, E. N. and Larionova, E. G. and Nikiforova, A. A. and Morozova, D. A. and Troitskaya, Yu. V. and Troitsky, I. S. and Kurtanidze, O. M. and Nikolashvili, M. G. and Kurtanidze, S. O. and Kimeridze, G. N. and Chigladze, R. A. and Strigachev, A. and Sadun, A. C.}, title = {Extreme HBL behavior of Markarian 501 during 2012}, series = {Astronomy and astrophysics : an international weekly journal / European Southern Observatory (ESO)}, volume = {620}, journal = {Astronomy and astrophysics : an international weekly journal / European Southern Observatory (ESO)}, publisher = {EDP Sciences}, address = {Les Ulis}, organization = {MAGIC Collaboration FACT Collaboration VERITAS Collaboration}, issn = {1432-0746}, doi = {10.1051/0004-6361/201833704}, pages = {23}, year = {2018}, abstract = {Aims. We aim to characterize the multiwavelength emission from Markarian 501 (Mrk 501), quantify the energy-dependent variability, study the potential multiband correlations, and describe the temporal evolution of the broadband emission within leptonic theoretical scenarios. Methods. We organized a multiwavelength campaign to take place between March and July of 2012. Excellent temporal coverage was obtained with more than 25 instruments, including the MAGIC, FACT and VERITAS Cherenkov telescopes, the instruments on board the Swift and Fermi spacecraft, and the telescopes operated by the GASP-WEBT collaboration. Results. Mrk 501 showed a very high energy (VHE) gamma-ray flux above 0.2 TeV of similar to 0.5 times the Crab Nebula flux (CU) for most of the campaign. The highest activity occurred on 2012 June 9, when the VHE flux was similar to 3 CU, and the peak of the high-energy spectral component was found to be at similar to 2 TeV. Both the X-ray and VHE gamma-ray spectral slopes were measured to be extremely hard, with spectral indices <2 during most of the observing campaign, regardless of the X-ray and VHE flux. This study reports the hardest Mrk 501 VHE spectra measured to date. The fractional variability was found to increase with energy, with the highest variability occurring at VHE. Using the complete data set, we found correlation between the X-ray and VHE bands; however, if the June 9 flare is excluded, the correlation disappears (significance <3 sigma) despite the existence of substantial variability in the X-ray and VHE bands throughout the campaign. Conclusions. The unprecedentedly hard X-ray and VHE spectra measured imply that their low- and high-energy components peaked above 5 keV and 0.5 TeV, respectively, during a large fraction of the observing campaign, and hence that Mrk 501 behaved like an extreme high-frequency-peaked blazar (EHBL) throughout the 2012 observing season. This suggests that being an EHBL may not be a permanent characteristic of a blazar, but rather a state which may change over time. The data set acquired shows that the broadband spectral energy distribution (SED) of Mrk 501, and its transient evolution, is very complex, requiring, within the framework of synchrotron self-Compton (SSC) models, various emission regions for a satisfactory description. Nevertheless the one-zone SSC scenario can successfully describe the segments of the SED where most energy is emitted, with a significant correlation between the electron energy density and the VHE gamma-ray activity, suggesting that most of the variability may be explained by the injection of high-energy electrons. The one-zone SSC scenario used reproduces the behavior seen between the measured X-ray and VHE gamma-ray fluxes, and predicts that the correlation becomes stronger with increasing energy of the X-rays.}, language = {en} } @article{DeAngelisTatischeffTavanietal.2017, author = {De Angelis, A. and Tatischeff, V. and Tavani, M. and Oberlack, U. and Grenier, I. and Hanloni, L. and Walter, R. and Argan, A. and Von Ballmoos, P. and Bulgarelli, A. and Donnarumma, I. and Hernanz, M. and Kuvvetli, I. and Pearce, M. and Zdziarski, A. and Aboudan, A. and Ajello, M. and Ambrosi, G. and Bernard, D. and Bernardini, E. and Bonvicini, V. and Brogna, A. and Branchesi, M. and Budtz-Jorgensen, C. and Bykov, A. M. and Campana, R. and Cardillo, M. and Coppi, P. and De Martino, D. and Diehl, R. and Doro, M. and Fioretti, V. and Funk, S. and Ghisellini, G. and Grove, E. and Hamadache, C. and Hartmann, D. H. and Hayashida, M. and Isern, J. and Kanbach, G. and Kiener, J. and Knodlseder, J. and Labanti, C. and Laurent, P. and Limousin, O. and Longo, F. and Mannheim, K. and Marisaldi, M. and Martinez, M. and Mazziotta, Mario Nicola and McEnery, J. and Mereghetti, S. and Minervini, G. and Moiseev, A. and Morselli, A. and Nakazawa, K. and Orleanski, P. and Paredes, J. M. and Patricelli, B. and Pevre, J. and Piano, G. and Pohl, Martin and Ramarijaona, H. and Rando, R. and Reichardt, I. and Roncadelli, M. and Silva, R. and Tavecchio, F. and Thompson, D. J. and Turolla, R. and Ulyanov, A. and Vacchi, A. and Wu, X. and Zoglauer, A.}, title = {The e-ASTROGAM mission Exploring the extreme Universe with gamma rays in the MeV - GeV range}, series = {Experimental astronomy : an international journal on astronomical instrumentation and data analysis}, volume = {44}, journal = {Experimental astronomy : an international journal on astronomical instrumentation and data analysis}, publisher = {Springer}, address = {Dordrecht}, organization = {The e-ASTROGAM Collaboration}, issn = {0922-6435}, doi = {10.1007/s10686-017-9533-6}, pages = {25 -- 82}, year = {2017}, abstract = {e-ASTROGAM ('enhanced ASTROGAM') is a breakthrough Observatory space mission, with a detector composed by a Silicon tracker, a calorimeter, and an anticoincidence system, dedicated to the study of the non-thermal Universe in the photon energy range from 0.3 MeV to 3 GeV - the lower energy limit can be pushed to energies as low as 150 keV, albeit with rapidly degrading angular resolution, for the tracker, and to 30 keV for calorimetric detection. The mission is based on an advanced space-proven detector technology, with unprecedented sensitivity, angular and energy resolution, combined with polarimetric capability. Thanks to its performance in the MeV-GeV domain, substantially improving its predecessors, e-ASTROGAM will open a new window on the non-thermal Universe, making pioneering observations of the most powerful Galactic and extragalactic sources, elucidating the nature of their relativistic outflows and their effects on the surroundings. With a line sensitivity in the MeV energy range one to two orders of magnitude better than previous generation instruments, e-ASTROGAM will determine the origin of key isotopes fundamental for the understanding of supernova explosion and the chemical evolution of our Galaxy. The mission will provide unique data of significant interest to a broad astronomical community, complementary to powerful observatories such as LIGO-Virgo-GEO600-KAGRA, SKA, ALMA, E-ELT, TMT, LSST, JWST, Athena, CTA, IceCube, KM3NeT, and the promise of eLISA.}, language = {en} } @inproceedings{TatischeffDeAngelisTavanietal.2018, author = {Tatischeff, V. and De Angelis, A. and Tavani, M. and Grenier, I. and Oberlack, U. and Hanlon, L. and Walter, R. and Argan, A. and von Ballmoos, P. and Bulgarelli, A. and Donnarumma, I. and Hernanz, Margarita and Kuvvetli, I. and Mallamaci, M. and Pearce, M. and Zdziarski, A. and Aboudan, A. and Ajello, M. and Ambrosi, G. and Bernard, D. and Bernardini, E. and Bonvicini, V. and Brogna, A. and Branchesi, M. and Budtz-Jorgensen, C. and Bykov, A. and Campana, R. and Cardillo, M. and Ciprini, S. and Coppi, P. and Cumani, P. and da Silva, R. M. Curado and De Martino, D. and Diehl, R. and Doro, M. and Fioretti, V. and Funk, S. and Ghisellini, G. and Giordano, F. and Grove, J. E. and Hamadache, C. and Hartmann, D. H. and Hayashida, M. and Isern, J. and Kanbach, G. and Kiener, J. and Knodlseder, J. and Labanti, C. and Laurent, P. and Leising, M. and Limousin, O. and Longo, F. and Mannheim, K. and Marisaldi, M. and Martinez, M. and Mazziotta, M. N. and McEnery, J. E. and Mereghetti, S. and Minervini, G. and Moiseev, A. and Morselli, A. and Nakazawa, K. and Orleanski, P. and Paredes, J. M. and Patricelli, B. and Peyre, J. and Piano, G. and Pohl, Martin and Rando, R. and Roncadelli, M. and Tavecchio, F. and Thompson, D. J. and Turolla, R. and Ulyanov, A. and Vacchi, A. and Wu, X. and Zoglauer, A.}, title = {The e-ASTROGAM gamma-ray space observatory for the multimessenger astronomy of the 2030s}, series = {Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray}, volume = {10699}, booktitle = {Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray}, editor = {DenHerder, JWA Nikzad}, publisher = {SPIE - The International Society for Optical Engineering}, address = {Bellingham}, isbn = {978-1-5106-1952-4}, issn = {0277-786X}, doi = {10.1117/12.2315151}, pages = {15}, year = {2018}, abstract = {e-ASTROGAM is a concept for a breakthrough observatory space mission carrying a gamma-ray telescope dedicated to the study of the non-thermal Universe in the photon energy range from 0.15 MeV to 3 GeV. The lower energy limit can be pushed down to energies as low as 30 keV for gamma-ray burst detection with the calorimeter. The mission is based on an advanced space-proven detector technology, with unprecedented sensitivity, angular and energy resolution, combined with remarkable polarimetric capability. Thanks to its performance in the MeV-GeV domain, substantially improving its predecessors, e-ASTROGAM will open a new window on the non-thermal Universe, making pioneering observations of the most powerful Galactic and extragalactic sources, elucidating the nature of their relativistic outflows and their effects on the surroundings. With a line sensitivity in the MeV energy range one to two orders of magnitude better than previous and current generation instruments, e-ASTROGAM will determine the origin of key isotopes fundamental for the understanding of supernova explosion and the chemical evolution of our Galaxy. The mission will be a major player of the multiwavelength, multimessenger time-domain astronomy of the 2030s, and provide unique data of significant interest to a broad astronomical community, complementary to powerful observatories such as LISA, LIGO, Virgo, KAGRA, the Einstein Telescope and the Cosmic Explorer, IceCube-Gen2 and KM3NeT, SKA, ALMA, JWST, E-ELT, LSST, Athena, and the Cherenkov Telescope Array.}, language = {en} } @article{KrohnMaterneSchlutowetal.1999, author = {Krohn, Arne and Materne, Stefanie and Schlutow, A. and Wilhelm, R. and Metzdorf, R. and Wilk, B. and F{\"o}rster, B. and Schade, Bernd and Kitzig, Angelika and M{\"u}ller, J{\"o}rg and Haase, Walter and R{\"u}ckert-John, Jana}, title = {Agenda 21-Prozesse f{\"u}r zukunftsf{\"a}hige Kommunen in Brandenburg}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-4120}, year = {1999}, abstract = {Agenda 21-Prozesse f{\"u}r zukunftsf{\"a}hige Kommunen in Brandenburg KROHN, A.: Stadtentwicklung und Lokale Agenda 21 - Zwei Seiten einer Medaille ; MATERNE, S.: Agenda 21 in Oranienburg - die Entwicklung eines Leitbildes ; SCHLUTOW, A.; WILHELM, B.; METZDORF, R.; WILK, B., F{\"O}RSTER, B.: Interessengemeinschaft "{\"O}kologie 2000 - Unternehmer f{\"u}r die Umwelt" - Anstoß der Wirtschaft f{\"u}r eine lokale Agenda 21 in Strausberg ; SCHADE, B.: Agenda 21 im Landkreis Potsdam-Mittelmark - Rahmen f{\"u}r lokale Aktivit{\"a}ten ; KITZIG, A.: Potsdam, Stadt der Toleranz - unterwegs mit Geschichts- und Verantwortungsbewußtsein f{\"u}r die Zukunft. Die Lokale Agenda 21 ; M{\"U}LLER, J.: Umsetzung eines Klimaschutzkonzeptes - Schritte zu einer nachhaltigen Entwicklung der Stadt Eberswalde , HAASE, W.: Eine lokale Agenda 21 f{\"u}r Kleinmachnow , R{\"U}CKERT-JOHN, J.: Auf dem Weg zur Nachhaltigkeit. Ergebnisse einer Dorfstudie}, language = {de} } @article{ZornLeCorvecVarleyetal.2019, author = {Zorn, Edgar Ulrich and Le Corvec, Nicolas and Varley, Nick R. and Salzer, Jacqueline T. and Walter, Thomas R. and Navarro-Ochoa, Carlos and Vargas-Bracamontes, Dulce M. and Thiele, Samuel T. and Ar{\´a}mbula Mendoza, Ra{\´u}l}, title = {Load stress controls on directional lava dome growth at Volcan de Colima, Mexico}, series = {Frontiers in Earth Science}, volume = {7}, journal = {Frontiers in Earth Science}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2296-6463}, doi = {10.3389/feart.2019.00084}, pages = {18}, year = {2019}, abstract = {During eruptive activity of andesitic stratovolcanoes, the extrusion of lava domes, their collapse and intermittent explosions are common volcanic hazards. Many lava domes grow in a preferred direction, in turn affecting the direction of lava flows and pyroclastic density currents. Access to active lava domes is difficult and hazardous, so detailed data characterizing lava dome growth are typically limited, keeping the processes controlling the directionality of extrusions unclear. Here we combine TerraSAR-X satellite radar observations with high-resolution airborne photogrammetry to assess morphological changes, and perform finite element modeling to investigate the impact of loading stress on shallow magma ascent directions associated with lava dome extrusion and crater formation at Volcan de Colima, Mexico. The TerraSAR-X data, acquired in similar to 1-m resolution spotlight mode, enable us to derive a chronology of the eruptive processes from intensity-based time-lapse observations of the general crater and dome evolution. The satellite images are complemented by close-range airborne photos, processed by the Structure-from-Motion workflow. This allows the derivation of high-resolution digital elevation models, providing insight into detailed loading and unloading features. During the observation period from Jan-2013 to Feb-2016, we identify a dominantly W-directed dome growth and lava flow production until Jan-2015. In Feb-2015, following the removal of the active summit dome, the surface crater widened and elongated along a NE-SW axis. Later in May-2015, a new dome grew toward the SW of the crater while a separate vent developed in the NE of the crater, reflecting a change in the direction of magma ascent and possible conduit bifurcation. Finite element models show a significant stress change in agreement with the observed magma ascent direction changes in response to the changing surface loads, both for loading (dome growth) and unloading (crater forming excavation) cases. These results allow insight into shallow dome growth dynamics and the migration of magma ascent in response to changing volcano summit morphology. They further highlight the importance of detailed volcano summit morphology surveillance, as changes in direction or location of dome extrusion may have major implications regarding the directions of potential volcanic hazards, such as pyroclastic density currents generated by dome collapse.}, language = {en} } @article{BozzoBhaleraoPradhanetal.2016, author = {Bozzo, Enrico and Bhalerao, V. and Pradhan, Prajal and Tomsick, J. and Romano, Patrizia and Ferrigno, Carlo and Chaty, S. and Oskinova, Lida and Manousakis, A. and Walter, R. and Falanga, M. and Campana, S. and Stella, L. and Ramolla, M. and Chini, R.}, title = {Multi-wavelength observations of IGR J17544-2619 from quiescence to outburst}, series = {Journal of geophysical research : Earth surface}, volume = {596}, journal = {Journal of geophysical research : Earth surface}, publisher = {EDP Sciences}, address = {Les Ulis}, issn = {1432-0746}, doi = {10.1051/0004-6361/201629311}, pages = {12}, year = {2016}, abstract = {In this paper we report on a long multi-wavelength observational campaign of the supergiant fast X-ray transient prototype IGR J17544-2619. A 150 ks-long observation was carried out simultaneously with XMM-Newton and NuSTAR, catching the source in an initial faint X-ray state and then undergoing a bright X-ray outburst lasting approximately 7 ks. We studied the spectral variability during outburst and quiescence by using a thermal and bulk Comptonization model that is typically adopted to describe the X-ray spectral energy distribution of young pulsars in high mass X-ray binaries. Although the statistics of the collected X-ray data were relatively high, we could neither confirm the presence of a cyclotron line in the broad-band spectrum of the source (0.5-40 keV), nor detect any of the previously reported tentative detections of the source spin period. The monitoring carried out with Swift/XRT during the same orbit of the system observed by XMM-Newton and NuSTAR revealed that the source remained in a low emission state for most of the time, in agreement with the known property of all supergiant fast X-ray transients being significantly sub-luminous compared to other supergiant X-ray binaries. Optical and infrared observations were carried out for a total of a few thousand seconds during the quiescence state of the source detected by XMM-Newton and NuSTAR. The measured optical and infrared magnitudes were slightly lower than previous values reported in the literature, but compatible with the known micro-variability of supergiant stars. UV observations obtained with the UVOT telescope on-board Swift did not reveal significant changes in the magnitude of the source in this energy domain compared to previously reported values.}, language = {en} } @article{BardenRixSomervilleetal.2005, author = {Barden, Marco and Rix, Hans-Walter and Somerville, Rachel S. and Bell, Eric F. and H{\"a}ußler, Boris and Peng, Chen Y. and Borch, Andrea and Beckwith, Steven V. W. and Caldwell, John A. R. and Heymans, Catherine and Jahnke, Knud and Jogee, Shardha and McIntosh, Daniel H. and Meisenheimer, Klaus and Sanchez, Sebastian F. and Wisotzki, Lutz and Wolf, C.}, title = {GEMS : the surface brightness and surface mass density evolution of disk galaxies}, year = {2005}, abstract = {We combine HST imaging from the GEMS ( Galaxy Evolution from Morphologies and SEDs) survey with photometric redshifts from COMBO-17 to explore the evolution of disk-dominated galaxies since z less than or similar to 1.1. The sample is composed of all GEMS galaxies with Sersic indices n < 2.5, derived from fits to the galaxy images. We account fully for selection effects through careful analysis of image simulations; we are limited by the depth of the redshift and HST data to the study of galaxies with M-V less than or similar to -20, or equivalently, log (M/M-circle dot) greater than or similar to 10. We find strong evolution in the magnitude-size scaling relation for galaxies with M-V less than or similar to -20, corresponding to a brightening of similar to 1 mag arcsec(-2) in rest-frame V band by z similar to 1. Yet disks at a given absolute magnitude are bluer and have lower stellar mass-to-light ratios at z similar to 1 than at the present day. As a result, our findings indicate weak or no evolution in the relation between stellar mass and effective disk size for galaxies with log (M/M-circle dot) greater than or similar to 10 over the same time interval. This is strongly inconsistent with the most naive theoretical expectation, in which disk size scales in proportion to the halo virial radius, which would predict that disks are a factor of 2 denser at fixed mass at z similar to 1. The lack of evolution in the stellar mass-size relation is consistent with an "inside-out'' growth of galaxy disks on average (galaxies increasing in size as they grow more massive), although we cannot rule out more complex evolutionary scenarios}, language = {en} } @article{JahnkeSanchezWisotzkietal.2004, author = {Jahnke, Knud and Sanchez, Sebastian F. and Wisotzki, Lutz and Barden, Marco and Beckwith, Steven V. W. and Bell, Eric F. and Borch, Andrea and Caldwell, John A. R. and H{\"a}ußler, Boris and Heymans, Catherine and Jogee, Shardha and McIntosh, Daniel H. and Meisenheimer, Klaus and Peng, Chen Y. and Rix, Hans-Walter and Somerville, Rachel S. and Wolf, C.}, title = {Ultraviolet light from young stars in GEMS quasar host galaxies at 1.8 < z < 2.75}, issn = {0004-637X}, year = {2004}, abstract = {We have performed Hubble Space Telescope imaging of a sample of 23 high-redshift (1.8 Plain Language Summary Geysers are springs that often erupt in hot water fountains. They erupt more often than volcanoes but are quite similar. Nevertheless, it is poorly understood how often volcanoes and also geysers erupt. We created a list of 73,466 eruption times of Strokkur geyser, Iceland, from 1 year of seismic data. The geyser erupted one to six times in quick succession. We found 50,135 single eruptions but only 1 sextuple eruption, while the mean waiting time increased from 3.7 min after single eruptions to 16.4 min after sextuple eruptions. Mean amplitudes of each eruption type were higher for single eruptions, but all first eruptions in a succession were similar in height. Assuming a constant heat inflow at depth, we can predict the waiting time after an eruption but not the type or amplitude of the next one.}, language = {en} } @article{ParkWaltaRosencrantzetal.2016, author = {Park, H. and Walta, S. and Rosencrantz, Ruben R. and Koerner, A. and Schulte, Christoph and Elling, L. and Richtering, Walter and B{\"o}ker, Alexander}, title = {Micelles from self-assembled double-hydrophilic PHEMA-glycopolymer-diblock copolymers as multivalent scaffolds for lectin binding}, series = {Polymer Chemistry}, volume = {7}, journal = {Polymer Chemistry}, publisher = {Royal Society of Chemistry}, address = {Cambridge}, issn = {1759-9954}, doi = {10.1039/c5py00797f}, pages = {878 -- 886}, year = {2016}, abstract = {We introduce a novel double-hydrophilic hydroxyethylmethacrylate (HEMA) based diblock glycopolymer which self-assembles into homogeneous spherical micellar structures in water. The micellar structure renders surface-oriented N-acetylglucocosamine (GlcNAc) sugar moieties for strong multivalent glycan-mediated lectin binding. Structural analysis and lectin binding is performed by microscopy methods, dynamic light scattering (DLS) and two-focus fluorescence correlation spectroscopy (2fFCS), revealing a novel micellar type of multivalent sugar binding scaffold with high potential for biomedical applications.}, language = {en} } @article{EiblMuellerWalteretal.2021, author = {Eibl, Eva P. S. and M{\"u}ller, Daniel and Walter, Thomas R. and Allahbakhshi, Masoud and Jousset, Philippe and Hersir, Gylfi P{\´a}ll and Dahm, Torsten}, title = {Eruptive cycle and bubble trap of Strokkur Geyser, Iceland}, series = {Journal of geophysical research : JGR. B: Solid earth}, volume = {126}, journal = {Journal of geophysical research : JGR. B: Solid earth}, number = {4}, publisher = {Wiley}, address = {Hoboken, NJ}, issn = {2169-9313}, doi = {10.1029/2020JB020769}, pages = {20}, year = {2021}, abstract = {The eruption frequency of geysers can be studied easily on the surface. However, details of the internal structure including possible water and gas filled chambers feeding eruptions and the driving mechanisms often remain elusive. We used a multidisciplinary network of seismometers, video cameras, water pressure sensors and one tiltmeter to study the eruptive cycle, internal structure, and mechanisms driving the eruptive cycle of Strokkur geyser in June 2018. An eruptive cycle at Strokkur always consists of four phases: (1) Eruption, (2) post-eruptive conduit refilling, (3) gas filling of the bubble trap, and (4) regular bubble collapse at shallow depth in the conduit. For a typical single eruption 19 +/- 4 bubble collapses occur in Phase 3 and 8 +/- 2 collapses in Phase 4 at a mean spacing of 1.52 +/- 0.29 and 24.5 +/- 5.9 s, respectively. These collapses release latent heat to the fluid in the bubble trap (Phase 3) and later to the fluid in the conduit (Phase 4). The latter eventually reaches thermodynamic conditions for an eruption. Single to sextuple eruptions have similar spacings between bubble collapses and are likely fed from the same bubble trap at 23.7 +/- 4.4 m depth, 13-23 m west of the conduit. However, the duration of the eruption and recharging phase linearly increases likely due to a larger water, gas and heat loss from the system. Our tremor data provides documented evidence for a bubble trap beneath a pool geyser.}, language = {en} } @article{ArmstrongRadouskyAustinetal.2022, author = {Armstrong, Michael R. and Radousky, Harry B. and Austin, Ryan A. and Tschauner, Oliver and Brown, Shaughnessy and Gleason, Arianna E. and Goldman, Nir and Granados, Eduardo and Grivickas, Paulius and Holtgrewe, Nicholas and Kroonblawd, Matthew P. and Lee, Hae Ja and Lobanov, Sergey and Nagler, Bob and Nam, Inhyuk and Prakapenka, Vitali and Prescher, Clemens and Reed, Evan J. and Stavrou, Elissaios and Walter, Peter and Goncharov, Alexander F. and Belof, Jonathan L.}, title = {Highly ordered graphite (HOPG) to hexagonal diamond (lonsdaleite) phase transition observed on picosecond time scales using ultrafast x-ray diffraction}, series = {Journal of applied physics}, volume = {132}, journal = {Journal of applied physics}, number = {5}, publisher = {AIP Publishing}, address = {Melville}, issn = {0021-8979}, doi = {10.1063/5.0085297}, pages = {10}, year = {2022}, abstract = {The response of rapidly compressed highly oriented pyrolytic graphite (HOPG) normal to its basal plane was investigated at a pressure of \& SIM;80 GPa. Ultrafast x-ray diffraction using \& SIM;100 fs pulses at the Materials Under Extreme Conditions sector of the Linac Coherent Light Source was used to probe the changes in crystal structure resulting from picosecond timescale compression at laser drive energies ranging from 2.5 to 250 mJ. A phase transformation from HOPG to a highly textured hexagonal diamond structure is observed at the highest energy, followed by relaxation to a still highly oriented, but distorted graphite structure following release. We observe the formation of a highly oriented lonsdaleite within 20 ps, subsequent to compression. This suggests that a diffusionless martensitic mechanism may play a fundamental role in phase transition, as speculated in an early work on this system, and more recent static studies of diamonds formed in impact events. Published by AIP Publishing.}, language = {en} } @article{BeckmannKadowSchumacheretal.2018, author = {Beckmann, Nadine and Kadow, Stephanie and Schumacher, Fabian and Goethert, Joachim R. and Kesper, Stefanie and Draeger, Annette and Schulz-Schaeffer, Walter J. and Wang, Jiang and Becker, Jan U. and Kramer, Melanie and Kuehn, Claudine and Kleuser, Burkhard and Becker, Katrin Anne and Gulbins, Erich and Carpinteiro, Alexander}, title = {Pathological manifestations of Farber disease in a new mouse model}, series = {Biological chemistry}, volume = {399}, journal = {Biological chemistry}, number = {10}, publisher = {De Gruyter}, address = {Berlin}, issn = {1431-6730}, doi = {10.1515/hsz-2018-0170}, pages = {1183 -- 1202}, year = {2018}, abstract = {Farber disease (FD) is a rare lysosomal storage disorder resulting from acid ceramidase deficiency and subsequent ceramide accumulation. No treatments are clinically available and affected patients have a severely shortened lifespan. Due to the low incidence, the pathogenesis of FD is still poorly understood. Here, we report a novel acid ceramidase mutant mouse model that enables the study of pathogenic mechanisms of FD and ceramide accumulation. Asah1(tmEx1) mice were generated by deletion of the acid ceramidase signal peptide sequence. The effects on lysosomal targeting and activity of the enzyme were assessed. Ceramide and sphingomyelin levels were quantified by liquid chromatography tandem-mass spectrometry (LC-MS/MS) and disease manifestations in several organ systems were analyzed by histology and biochemistry. We show that deletion of the signal peptide sequence disrupts lysosomal targeting and enzyme activity, resulting in ceramide and sphingomyelin accumulation. The affected mice fail to thrive and die early. Histiocytic infiltrations were observed in many tissues, as well as lung inflammation, liver fibrosis, muscular disease manifestations and mild kidney injury. Our new mouse model mirrors human FD and thus offers further insights into the pathogenesis of this disease. In the future, it may also facilitate the development of urgently needed therapies.}, language = {en} } @article{WirgesPrzyrembelBrinkeretal.1995, author = {Wirges, Werner and Przyrembel, G. and Brinker, Walter and Gerhard, Reimund and Klemberg-Sapieha, J. and Martinu, L. and Poitras, D. and Wertheimer, M. R.}, title = {Metallised viscoelastic control layers for light-valve projection displays}, year = {1995}, language = {en} } @article{BrinkerWirgesMolzowetal.1995, author = {Brinker, Walter and Wirges, Werner and Molzow, Wolf-Dietrich and Gerhard, Reimund and Melcher, R. and Budde, W. and Fiedler, H.}, title = {Active silicon CMOS addressing matrices for light-valve projection displays}, year = {1995}, language = {en} } @article{HeslopWinkelAnthonyetal.2019, author = {Heslop, J. K. and Winkel, Matthias and Anthony, K. M. Walter and Spencer, R. G. M. and Podgorski, D. C. and Zito, P. and Kholodov, A. and Zhang, M. and Liebner, Susanne}, title = {Increasing organic carbon biolability with depth in yedoma permafrost}, series = {Journal of geophysical research : Biogeosciences}, volume = {124}, journal = {Journal of geophysical research : Biogeosciences}, number = {7}, publisher = {American Geophysical Union}, address = {Washington}, issn = {2169-8953}, doi = {10.1029/2018JG004712}, pages = {2021 -- 2038}, year = {2019}, abstract = {Permafrost thaw subjects previously frozen organic carbon (OC) to microbial decomposition, generating the greenhouse gases (GHG) carbon dioxide (CO2) and methane (CH4) and fueling a positive climate feedback. Over one quarter of permafrost OC is stored in deep, ice-rich Pleistocene-aged yedoma permafrost deposits. We used a combination of anaerobic incubations, microbial sequencing, and ultrahigh-resolution mass spectrometry to show yedoma OC biolability increases with depth along a 12-m yedoma profile. In incubations at 3 degrees C and 13 degrees C, GHG production per unit OC at 12-versus 1.3-m depth was 4.6 and 20.5 times greater, respectively. Bacterial diversity decreased with depth and we detected methanogens at all our sampled depths, suggesting that in situ microbial communities are equipped to metabolize thawed OC into CH4. We concurrently observed an increase in the relative abundance of reduced, saturated OC compounds, which corresponded to high proportions of C mineralization and positively correlated with anaerobic GHG production potentials and higher proportions of OC being mineralized as CH4. Taking into account the higher global warming potential (GWP) of CH4 compared to CO2, thawed yedoma sediments in our study had 2 times higher GWP at 12-versus 9.0-m depth at 3 degrees C and 15 times higher GWP at 13 degrees C. Considering that yedoma is vulnerable to processes that thaw deep OC, our findings imply that it is important to account for this increasing GHG production and GWP with depth to better understand the disproportionate impact of yedoma on the magnitude of the permafrost carbon feedback.}, language = {en} }