TY - JOUR
A1 - Abdalla, H.
A1 - Adam, R.
A1 - Aharonian, Felix A.
A1 - Benkhali, F. Ait
A1 - Angüner, Ekrem Oǧuzhan
A1 - Arcaro, C.
A1 - Armand, C.
A1 - Armstrong, T.
A1 - Ashkar, H.
A1 - Backes, M.
A1 - Baghmanyan, V.
A1 - Martins, V. Barbosa
A1 - Barnacka, A.
A1 - Barnard, M.
A1 - Becherini, Y.
A1 - Berge, D.
A1 - Bernlohr, K.
A1 - Bi, B.
A1 - Bottcher, M.
A1 - Boisson, C.
A1 - Bolmont, J.
A1 - de Lavergne, M. de Bony
A1 - Bordas, Pol
A1 - Breuhaus, M.
A1 - Brun, F.
A1 - Brun, P.
A1 - Bryan, M.
A1 - Buchele, M.
A1 - Bulik, T.
A1 - Bylund, T.
A1 - Caroff, S.
A1 - Carosi, A.
A1 - Casanova, Sabrina
A1 - Chand, T.
A1 - Chandra, S.
A1 - Chen, A.
A1 - Cotter, G.
A1 - Curylo, M.
A1 - Mbarubucyeye, J. Damascene
A1 - Davids, I. D.
A1 - Davies, J.
A1 - Deil, C.
A1 - Devin, J.
A1 - deWilt, P.
A1 - Dirson, L.
A1 - Djannati-Atai, A.
A1 - Dmytriiev, A.
A1 - Donath, A.
A1 - Doroshenko, V.
A1 - Duffy, C.
A1 - Dyks, J.
A1 - Egberts, Kathrin
A1 - Eichhorn, F.
A1 - Einecke, S.
A1 - Emery, G.
A1 - Ernenwein, J. -P.
A1 - Feijen, K.
A1 - Fegan, S.
A1 - Fiasson, A.
A1 - de Clairfontaine, G. Fichet
A1 - Fontaine, G.
A1 - Funk, S.
A1 - Fussling, Matthias
A1 - Gabici, S.
A1 - Gallant, Y. A.
A1 - Giavitto, G.
A1 - Giunti, L.
A1 - Glawion, D.
A1 - Glicenstein, J. F.
A1 - Gottschall, D.
A1 - Grondin, M. -H.
A1 - Hahn, J.
A1 - Haupt, M.
A1 - Hermann, G.
A1 - Hinton, J. A.
A1 - Hofmann, W.
A1 - Hoischen, Clemens
A1 - Holch, T. L.
A1 - Holler, M.
A1 - Horbe, M.
A1 - Horns, D.
A1 - Huber, D.
A1 - Jamrozy, M.
A1 - Jankowsky, D.
A1 - Jankowsky, F.
A1 - Jardin-Blicq, A.
A1 - Joshi, V.
A1 - Jung-Richardt, I.
A1 - Kasai, E.
A1 - Kastendieck, M. A.
A1 - Katarzynski, K.
A1 - Katz, U.
A1 - Khangulyan, D.
A1 - Khelifi, B.
A1 - Klepser, S.
A1 - Kluzniak, W.
A1 - Komin, Nu.
A1 - Konno, R.
A1 - Kosack, K.
A1 - Kostunin, D.
A1 - Kreter, M.
A1 - Lamanna, G.
A1 - Lemiere, A.
A1 - Lemoine-Goumard, M.
A1 - Lenain, J. -P.
A1 - Levy, C.
A1 - Lohse, T.
A1 - Lypova, I.
A1 - Mackey, J.
A1 - Majumdar, J.
A1 - Malyshev, D.
A1 - Malyshev, D.
A1 - Marandon, V.
A1 - Marchegiani, P.
A1 - Marcowith, Alexandre
A1 - Mares, A.
A1 - Marti-Devesa, G.
A1 - Marx, R.
A1 - Maurin, G.
A1 - Meintjes, P. J.
A1 - Meyer, M.
A1 - Mitchell, A.
A1 - Moderski, R.
A1 - Mohamed, M.
A1 - Mohrmann, L.
A1 - Montanari, A.
A1 - Moore, C.
A1 - Morris, P.
A1 - Moulin, Emmanuel
A1 - Muller, J.
A1 - Murach, T.
A1 - Nakashima, K.
A1 - Nayerhoda, A.
A1 - de Naurois, M.
A1 - Ndiyavala, H.
A1 - Niederwanger, F.
A1 - Niemiec, J.
A1 - Oakes, L.
A1 - O'Brien, Patrick
A1 - Odaka, H.
A1 - Ohm, S.
A1 - Olivera-Nieto, L.
A1 - Wilhelmi, E. de Ona
A1 - Ostrowski, M.
A1 - Oya, I.
A1 - Panter, M.
A1 - Panny, S.
A1 - Parsons, R. D.
A1 - Peron, G.
A1 - Peyaud, B.
A1 - Piel, Q.
A1 - Pita, S.
A1 - Poireau, V.
A1 - Noel, A. Priyana
A1 - Prokhorov, D. A.
A1 - Prokoph, H.
A1 - Puhlhofer, G.
A1 - Punch, M.
A1 - Quirrenbach, A.
A1 - Raab, S.
A1 - Rauth, R.
A1 - Reichherzer, P.
A1 - Reimer, A.
A1 - Reimer, O.
A1 - Remy, Q.
A1 - Renaud, M.
A1 - Rieger, F.
A1 - Rinchiuso, L.
A1 - Romoli, C.
A1 - Rowell, G.
A1 - Rudak, B.
A1 - Ruiz-Velasco, E.
A1 - Sahakian, V.
A1 - Sailer, S.
A1 - Sanchez, D. A.
A1 - Santangelo, Andrea
A1 - Sasaki, M.
A1 - Scalici, M.
A1 - Schussler, F.
A1 - Schutte, H. M.
A1 - Schwanke, U.
A1 - Schwemmer, S.
A1 - Seglar-Arroyo, M.
A1 - Senniappan, M.
A1 - Seyffert, A. S.
A1 - Shafi, N.
A1 - Shiningayamwe, K.
A1 - Simoni, R.
A1 - Sinha, A.
A1 - Sol, H.
A1 - Specovius, A.
A1 - Spencer, S.
A1 - Spir-Jacob, M.
A1 - Stawarz, L.
A1 - Sun, L.
A1 - Steenkamp, R.
A1 - Stegmann, C.
A1 - Steinmassl, S.
A1 - Steppa, C.
A1 - Takahashi, T.
A1 - Tavernier, T.
A1 - Taylor, A. M.
A1 - Terrier, R.
A1 - Tiziani, D.
A1 - Tluczykont, M.
A1 - Tomankova, L.
A1 - Trichard, C.
A1 - Tsirou, M.
A1 - Tuffs, R.
A1 - Uchiyama, Y.
A1 - van der Walt, D. J.
A1 - van Eldik, C.
A1 - van Rensburg, C.
A1 - van Soelen, B.
A1 - Vasileiadis, G.
A1 - Veh, J.
A1 - Venter, C.
A1 - Vincent, P.
A1 - Vink, J.
A1 - Volk, H. J.
A1 - Vuillaume, T.
A1 - Wadiasingh, Z.
A1 - Wagner, S. J.
A1 - Watson, J.
A1 - Werner, F.
A1 - White, R.
A1 - Wierzcholska, A.
A1 - Wong, Yu Wun
A1 - Yusafzai, A.
A1 - Zacharias, M.
A1 - Zanin, R.
A1 - Zargaryan, D.
A1 - Zdziarski, A. A.
A1 - Zech, Alraune
A1 - Zhu, S. J.
A1 - Ziegler, A.
A1 - Zorn, J.
A1 - Zouari, S.
A1 - Zywucka, N.
T1 - An extreme particle accelerator in the Galactic plane
BT - HESS J1826-130
JF - Astronomy and astrophysics : an international weekly journal
N2 - The unidentified very-high-energy (VHE; E > 0.1 TeV) gamma -ray source, HESS J1826-130, was discovered with the High Energy Stereoscopic System (HESS) in the Galactic plane. The analysis of 215 h of HESS data has revealed a steady gamma -ray flux from HESS J1826-130, which appears extended with a half-width of 0.21 degrees +/- 0.02
(stat)degrees
stat degrees +/- 0.05
(sys)degrees sys degrees . The source spectrum is best fit with either a power-law function with a spectral index Gamma = 1.78 +/- 0.10(stat) +/- 0.20(sys) and an exponential cut-off at 15.2
(+5.5)(-3.2) -3.2+5.5 TeV, or a broken power-law with Gamma (1) = 1.96 +/- 0.06(stat) +/- 0.20(sys), Gamma (2) = 3.59 +/- 0.69(stat) +/- 0.20(sys) for energies below and above E-br = 11.2 +/- 2.7 TeV, respectively. The VHE flux from HESS J1826-130 is contaminated by the extended emission of the bright, nearby pulsar wind nebula, HESS J1825-137, particularly at the low end of the energy spectrum. Leptonic scenarios for the origin of HESS J1826-130 VHE emission related to PSR J1826-1256 are confronted by our spectral and morphological analysis. In a hadronic framework, taking into account the properties of dense gas regions surrounding HESS J1826-130, the source spectrum would imply an astrophysical object capable of accelerating the parent particle population up to greater than or similar to 200 TeV. Our results are also discussed in a multiwavelength context, accounting for both the presence of nearby supernova remnants, molecular clouds, and counterparts detected in radio, X-rays, and TeV energies.
KW - ISM: supernova remnants
KW - ISM: clouds
KW - gamma rays: general
KW - gamma rays:
KW - ISM
Y1 - 2020
U6 - https://doi.org/10.1051/0004-6361/202038851
SN - 0004-6361
SN - 1432-0746
VL - 644
PB - EDP Sciences
CY - Les Ulis
ER -
TY - JOUR
A1 - Abdalla, Hassan E.
A1 - Aharonian, Felix A.
A1 - Benkhali, F. Ait
A1 - Anguener, E. O.
A1 - Arakawa, M.
A1 - Arcaro, C.
A1 - Armand, C.
A1 - Ashkar, H.
A1 - Backes, M.
A1 - Martins, V. Barbosa
A1 - Barnard, M.
A1 - Becherini, Y.
A1 - Berge, D.
A1 - Bernloehr, K.
A1 - Blackwell, R.
A1 - Boettcher, M.
A1 - Boisson, C.
A1 - Bolmont, J.
A1 - Bonnefoy, S.
A1 - Bregeon, J.
A1 - Breuhaus, M.
A1 - Brun, F.
A1 - Brun, P.
A1 - Bryan, M.
A1 - Buechele, M.
A1 - Bulik, T.
A1 - Bylund, T.
A1 - Capasso, M.
A1 - Caroff, S.
A1 - Carosi, A.
A1 - Casanova, Sabrina
A1 - Cerruti, M.
A1 - Chakraborty, N.
A1 - Chand, T.
A1 - Chandra, S.
A1 - Chaves, R. C. G.
A1 - Chen, A.
A1 - Colafrancesco, S.
A1 - Curylo, M.
A1 - Davids, I. D.
A1 - Deil, C.
A1 - Devin, J.
A1 - de Wilt, P.
A1 - Dirson, L.
A1 - Djannati-Atai, A.
A1 - Dmytriiev, A.
A1 - Donath, A.
A1 - Doroshenko, V
A1 - Dyks, J.
A1 - Egberts, Kathrin
A1 - Emery, G.
A1 - Ernenwein, J-p
A1 - Eschbach, S.
A1 - Feijen, K.
A1 - Fegan, S.
A1 - Fiasson, A.
A1 - Fontaine, G.
A1 - Funk, S.
A1 - Fuessling, M.
A1 - Gabici, S.
A1 - Gallant, Y. A.
A1 - Gate, F.
A1 - Giavitto, G.
A1 - Glawion, D.
A1 - Glicenstein, J. F.
A1 - Gottschall, D.
A1 - Grondin, M-H
A1 - Hahn, J.
A1 - Haupt, M.
A1 - Heinzelmann, G.
A1 - Henri, G.
A1 - Hermann, G.
A1 - Hinton, James Anthony
A1 - Hofmann, W.
A1 - Hoischen, Clemens
A1 - Holch, Tim Lukas
A1 - Holler, M.
A1 - Horns, D.
A1 - Huber, D.
A1 - Iwasaki, H.
A1 - Jamrozy, M.
A1 - Jankowsky, D.
A1 - Jankowsky, F.
A1 - Jung-Richardt, I
A1 - Kastendieck, M. A.
A1 - Katarzynski, K.
A1 - Katsuragawa, M.
A1 - Katz, U.
A1 - Khangulyan, D.
A1 - Khelifi, B.
A1 - King, J.
A1 - Klepser, S.
A1 - Kluzniak, W.
A1 - Komin, Nu
A1 - Kosack, K.
A1 - Kostunin, D.
A1 - Kraus, M.
A1 - Lamanna, G.
A1 - Lau, J.
A1 - Lemiere, A.
A1 - Lemoine-Goumard, M.
A1 - Lenain, J-P
A1 - Leser, Eva
A1 - Levy, C.
A1 - Lohse, T.
A1 - Lopez-Coto, R.
A1 - Lypova, I
A1 - Mackey, J.
A1 - Majumdar, J.
A1 - Malyshev, D.
A1 - Marandon, V
A1 - Marcowith, Alexandre
A1 - Mares, A.
A1 - Mariaud, C.
A1 - Marti-Devesa, G.
A1 - Marx, R.
A1 - Maurin, G.
A1 - Meintjes, P. J.
A1 - Mitchell, A. M. W.
A1 - Moderski, R.
A1 - Mohamed, M.
A1 - Mohrmann, L.
A1 - Muller, J.
A1 - Moore, C.
A1 - Moulin, Emmanuel
A1 - Murach, T.
A1 - Nakashima, S.
A1 - de Naurois, M.
A1 - Ndiyavala, H.
A1 - Niederwanger, F.
A1 - Niemiec, J.
A1 - Oakes, L.
A1 - Odaka, H.
A1 - Ohm, S.
A1 - Wilhelmi, E. de Ona
A1 - Ostrowski, M.
A1 - Oya, I
A1 - Panter, M.
A1 - Parsons, R. D.
A1 - Perennes, C.
A1 - Petrucci, P-O
A1 - Peyaud, B.
A1 - Piel, Q.
A1 - Pita, S.
A1 - Poireau, V
A1 - Noel, A. Priyana
A1 - Prokhorov, D. A.
A1 - Prokoph, H.
A1 - Puehlhofer, G.
A1 - Punch, M.
A1 - Quirrenbach, A.
A1 - Raab, S.
A1 - Rauth, R.
A1 - Reimer, A.
A1 - Reimer, O.
A1 - Remy, Q.
A1 - Renaud, M.
A1 - Rieger, F.
A1 - Rinchiuso, L.
A1 - Romoli, C.
A1 - Rowell, G.
A1 - Rudak, B.
A1 - Ruiz-Velasco, E.
A1 - Sahakian, V
A1 - Saito, S.
A1 - Sanchez, David M.
A1 - Santangelo, Andrea
A1 - Sasaki, M.
A1 - Schlickeiser, R.
A1 - Schussler, F.
A1 - Schulz, A.
A1 - Schutte, H.
A1 - Schwanke, U.
A1 - Schwemmer, S.
A1 - Seglar-Arroyo, M.
A1 - Senniappan, M.
A1 - Seyffert, A. S.
A1 - Shafi, N.
A1 - Shiningayamwe, K.
A1 - Simoni, R.
A1 - Sinha, A.
A1 - Sol, H.
A1 - Specovius, A.
A1 - Spir-Jacob, M.
A1 - Stawarz, L.
A1 - Steenkamp, R.
A1 - Stegmann, Christian
A1 - Steppa, Constantin Beverly
A1 - Takahashi, T.
A1 - Tavernier, T.
A1 - Taylor, A. M.
A1 - Terrier, R.
A1 - Tiziani, D.
A1 - Tluczykont, M.
A1 - Trichard, C.
A1 - Tsirou, M.
A1 - Tsuji, N.
A1 - Tuffs, R.
A1 - Uchiyama, Y.
A1 - van der Walt, D. J.
A1 - van Eldik, C.
A1 - van Rensburg, C.
A1 - van Soelen, B.
A1 - Vasileiadis, G.
A1 - Veh, J.
A1 - Venter, C.
A1 - Vincent, P.
A1 - Vink, J.
A1 - Voisin, F.
A1 - Voelk, H. J.
A1 - Vuillaume, T.
A1 - Wadiasingh, Z.
A1 - Wagner, S. J.
A1 - White, R.
A1 - Wierzcholska, A.
A1 - Yang, R.
A1 - Yoneda, H.
A1 - Zacharias, M.
A1 - Zanin, R.
A1 - Zdziarski, A. A.
A1 - Zech, Alraune
A1 - Ziegler, A.
A1 - Zorn, J.
A1 - Zywucka, N.
A1 - Maxted, N.
T1 - Upper limits on very-high-energy gamma-ray emission from core-collapse supernovae observed with H.E.S.S.
JF - Astronomy and astrophysics : an international weekly journal
N2 - Young core-collapse supernovae with dense-wind progenitors may be able to accelerate cosmic-ray hadrons beyond the knee of the cosmic-ray spectrum, and this may result in measurable gamma-ray emission. We searched for gamma-ray emission from ten super- novae observed with the High Energy Stereoscopic System (H.E.S.S.) within a year of the supernova event. Nine supernovae were observed serendipitously in the H.E.S.S. data collected between December 2003 and December 2014, with exposure times ranging from 1.4 to 53 h. In addition we observed SN 2016adj as a target of opportunity in February 2016 for 13 h. No significant gamma-ray emission has been detected for any of the objects, and upper limits on the >1 TeV gamma-ray flux of the order of similar to 10(-13) cm(-)(2)s(-1) are established, corresponding to upper limits on the luminosities in the range similar to 2 x 10(39) to similar to 1 x 10(42) erg s(-1). These values are used to place model-dependent constraints on the mass-loss rates of the progenitor stars, implying upper limits between similar to 2 x 10(-5) and similar to 2 x 10(-3) M-circle dot yr(-1) under reasonable assumptions on the particle acceleration parameters.
KW - gamma rays: general
KW - supernovae: general
KW - cosmic rays
Y1 - 2019
U6 - https://doi.org/10.1051/0004-6361/201935242
SN - 1432-0746
VL - 626
PB - EDP Sciences
CY - Les Ulis
ER -
TY - JOUR
A1 - Abdalla, Hassan E.
A1 - Adam, R.
A1 - Aharonian, Felix A.
A1 - Benkhali, F. Ait
A1 - Angüner, Ekrem Oǧuzhan
A1 - Arakawa, M.
A1 - Arcaro, C.
A1 - Armand, C.
A1 - Ashkar, H.
A1 - Backes, M.
A1 - Martins, V. Barbosa
A1 - Barnard, M.
A1 - Becherini, Y.
A1 - Berge, D.
A1 - Bernloehr, K.
A1 - Bissaldi, E.
A1 - Blackwell, R.
A1 - Boettcher, M.
A1 - Boisson, C.
A1 - Bolmont, J.
A1 - Bonnefoy, S.
A1 - Bregeon, J.
A1 - Breuhaus, M.
A1 - Brun, F.
A1 - Brun, P.
A1 - Bryan, M.
A1 - Buechele, M.
A1 - Bulik, T.
A1 - Bylund, T.
A1 - Capasso, M.
A1 - Caroff, S.
A1 - Carosi, A.
A1 - Casanova, Sabrina
A1 - Cerruti, M.
A1 - Chand, T.
A1 - Chandra, S.
A1 - Chen, A.
A1 - Colafrancesco, S.
A1 - Curylo, M.
A1 - Davids, I. D.
A1 - Deil, C.
A1 - Devin, J.
A1 - deWilt, P.
A1 - Dirson, L.
A1 - Djannati-Atai, A.
A1 - Dmytriiev, A.
A1 - Donath, A.
A1 - Doroshenko, V
A1 - Dyks, J.
A1 - Egberts, Kathrin
A1 - Emery, G.
A1 - Ernenwein, J-P
A1 - Eschbach, S.
A1 - Feijen, K.
A1 - Fegan, S.
A1 - Fiasson, A.
A1 - Fontaine, G.
A1 - Funk, S.
A1 - Fussling, Matthias
A1 - Gabici, S.
A1 - Gallant, Y. A.
A1 - Gate, F.
A1 - Giavitto, G.
A1 - Giunti, L.
A1 - Glawion, D.
A1 - Glicenstein, J. F.
A1 - Gottschall, D.
A1 - Grondin, M-H
A1 - Hahn, J.
A1 - Haupt, M.
A1 - Heinzelmann, G.
A1 - Henri, G.
A1 - Hermann, G.
A1 - Hinton, J. A.
A1 - Hofmann, W.
A1 - Hoischen, Clemens
A1 - Holch, T. L.
A1 - Holler, M.
A1 - Horns, D.
A1 - Huber, D.
A1 - Iwasaki, H.
A1 - Jamrozy, M.
A1 - Jankowsky, D.
A1 - Jankowsky, F.
A1 - Jardin-Blicq, A.
A1 - Jung-Richardt, I
A1 - Kastendieck, M. A.
A1 - Katarzynski, K.
A1 - Katsuragawa, M.
A1 - Katz, U.
A1 - Khangulyan, D.
A1 - Khelifi, B.
A1 - King, J.
A1 - Klepser, S.
A1 - Kluzniak, W.
A1 - Komin, Nu
A1 - Kosack, K.
A1 - Kostunin, D.
A1 - Kreter, M.
A1 - Lamanna, G.
A1 - Lemiere, A.
A1 - Lemoine-Goumard, M.
A1 - Lenain, J-P
A1 - Leser, Eva
A1 - Levy, C.
A1 - Lohse, T.
A1 - Lypova, I
A1 - Mackey, J.
A1 - Majumdar, J.
A1 - Malyshev, D.
A1 - Marandon, V
A1 - Marcowith, Alexandre
A1 - Mares, A.
A1 - Mariaud, C.
A1 - Marti-Devesa, G.
A1 - Marx, R.
A1 - Maurin, G.
A1 - Meintjes, P. J.
A1 - Mitchell, A. M. W.
A1 - Moderski, R.
A1 - Mohamed, M.
A1 - Mohrmann, L.
A1 - Moore, C.
A1 - Moulin, Emmanuel
A1 - Muller, J.
A1 - Murach, T.
A1 - Nakashima, S.
A1 - de Naurois, M.
A1 - Ndiyavala, H.
A1 - Niederwanger, F.
A1 - Niemiec, J.
A1 - Oakes, L.
A1 - Odaka, H.
A1 - Ohm, S.
A1 - Wilhelmi, E. de Ona
A1 - Ostrowski, M.
A1 - Oya, I
A1 - Panter, M.
A1 - Parsons, R. D.
A1 - Perennes, C.
A1 - Petrucci, P-O
A1 - Peyaud, B.
A1 - Piel, Q.
A1 - Pita, S.
A1 - Poireau, V
A1 - Noel, A. Priyana
A1 - Prokhorov, D. A.
A1 - Prokoph, H.
A1 - Puehlhofer, G.
A1 - Punch, M.
A1 - Quirrenbach, A.
A1 - Raab, S.
A1 - Rauth, R.
A1 - Reimer, A.
A1 - Reimer, O.
A1 - Remy, Q.
A1 - Renaud, M.
A1 - Rieger, F.
A1 - Rinchiuso, L.
A1 - Romoli, C.
A1 - Rowell, G.
A1 - Rudak, B.
A1 - Ruiz-Velasco, E.
A1 - Sahakian, V
A1 - Sailer, S.
A1 - Saito, S.
A1 - Sanchez, D. A.
A1 - Santangelo, Andrea
A1 - Sasaki, M.
A1 - Schlickeiser, R.
A1 - Schussler, F.
A1 - Schulz, A.
A1 - Schutte, H. M.
A1 - Schwanke, U.
A1 - Schwemmer, S.
A1 - Seglar-Arroyo, M.
A1 - Senniappan, M.
A1 - Seyffert, A. S.
A1 - Shafi, N.
A1 - Shiningayamwe, K.
A1 - Simoni, R.
A1 - Sinha, A.
A1 - Sol, H.
A1 - Specovius, A.
A1 - Spir-Jacob, M.
A1 - Stawarz, L.
A1 - Steenkamp, R.
A1 - Stegmann, Christian
A1 - Steppa, Constantin Beverly
A1 - Takahashi, T.
A1 - Tavernier, T.
A1 - Taylor, A. M.
A1 - Terrier, R.
A1 - Tiziani, D.
A1 - Tluczykont, M.
A1 - Trichard, C.
A1 - Tsirou, M.
A1 - Tsuji, N.
A1 - Tuffs, R.
A1 - Uchiyama, Y.
A1 - van der Walt, D. J.
A1 - van Eldik, C.
A1 - van Rensburg, C.
A1 - van Soelen, B.
A1 - Vasileiadis, G.
A1 - Veh, J.
A1 - Venter, C.
A1 - Vincent, P.
A1 - Vink, J.
A1 - Voelk, H. J.
A1 - Vuillaume, T.
A1 - Wadiasingh, Z.
A1 - Wagner, S. J.
A1 - White, R.
A1 - Wierzcholska, A.
A1 - Yang, R.
A1 - Yoneda, H.
A1 - Zacharias, M.
A1 - Zanin, R.
A1 - Zdziarski, A. A.
A1 - Zech, Alraune
A1 - Ziegler, A.
A1 - Zorn, J.
A1 - Zywucka, N.
A1 - de Palma, F.
A1 - Axelsson, M.
A1 - Roberts, O. J.
T1 - A very-high-energy component deep in the gamma-ray burst afterglow
JF - Nature : the international weekly journal of science
N2 - Gamma-ray bursts (GRBs) are brief flashes of gamma-rays and are considered to be the most energetic explosive phenomena in the Universe(1). The emission from GRBs comprises a short (typically tens of seconds) and bright prompt emission, followed by a much longer afterglow phase. During the afterglow phase, the shocked outflow-produced by the interaction between the ejected matter and the circumburst medium-slows down, and a gradual decrease in brightness is observed(2). GRBs typically emit most of their energy via.-rays with energies in the kiloelectronvolt-to-megaelectronvolt range, but a few photons with energies of tens of gigaelectronvolts have been detected by space-based instruments(3). However, the origins of such high-energy (above one gigaelectronvolt) photons and the presence of very-high-energy (more than 100 gigaelectronvolts) emission have remained elusive(4). Here we report observations of very-high-energy emission in the bright GRB 180720B deep in the GRB afterglow-ten hours after the end of the prompt emission phase, when the X-ray flux had already decayed by four orders of magnitude. Two possible explanations exist for the observed radiation: inverse Compton emission and synchrotron emission of ultrarelativistic electrons. Our observations show that the energy fluxes in the X-ray and gamma-ray range and their photon indices remain comparable to each other throughout the afterglow. This discovery places distinct constraints on the GRB environment for both emission mechanisms, with the inverse Compton explanation alleviating the particle energy requirements for the emission observed at late times. The late timing of this detection has consequences for the future observations of GRBs at the highest energies.
Y1 - 2019
U6 - https://doi.org/10.1038/s41586-019-1743-9
SN - 0028-0836
SN - 1476-4687
VL - 575
IS - 7783
SP - 464
EP - +
PB - Nature Publ. Group
CY - London
ER -
TY - JOUR
A1 - Abdalla, Hassan E.
A1 - Adam, R.
A1 - Aharonian, Felix A.
A1 - Benkhali, F. Ait
A1 - Angüner, Ekrem Oǧuzhan
A1 - Arakawa, M.
A1 - Arcaro, C.
A1 - Armand, C.
A1 - Ashkar, H.
A1 - Backes, M.
A1 - Martins, V. Barbosa
A1 - Barnard, M.
A1 - Becherini, Y.
A1 - Berge, D.
A1 - Bernloehr, K.
A1 - Blackwell, R.
A1 - Böttcher, M.
A1 - Boisson, C.
A1 - Bolmont, J.
A1 - Bonnefoy, S.
A1 - Bregeon, J.
A1 - Breuhaus, M.
A1 - Brun, F.
A1 - Brun, P.
A1 - Bryan, M.
A1 - Büchele, M.
A1 - Bulik, T.
A1 - Bylund, T.
A1 - Capasso, M.
A1 - Caroff, S.
A1 - Carosi, A.
A1 - Casanova, Sabrina
A1 - Cerruti, M.
A1 - Chand, T.
A1 - Chandra, S.
A1 - Chen, A.
A1 - Colafrancesco, S.
A1 - Curylo, M.
A1 - Davids, I. D.
A1 - Deil, C.
A1 - Devin, J.
A1 - DeWilt, P.
A1 - Dirson, L.
A1 - Djannati-Ata, A.
A1 - Dmytriiev, A.
A1 - Donath, A.
A1 - Doroshenko, V
A1 - Dyks, J.
A1 - Egberts, Kathrin
A1 - Emery, G.
A1 - Ernenwein, J-P
A1 - Eschbach, S.
A1 - Feijen, K.
A1 - Fegan, S.
A1 - Fiasson, A.
A1 - Fontaine, G.
A1 - Funk, S.
A1 - Füßling, Matthias
A1 - Gabici, S.
A1 - Gallant, Y. A.
A1 - Gate, F.
A1 - Giavitto, G.
A1 - Glawion, D.
A1 - Glicenstein, J. F.
A1 - Gottschall, D.
A1 - Grondin, M-H
A1 - Hahn, J.
A1 - Haupt, M.
A1 - Heinzelmann, G.
A1 - Henri, G.
A1 - Hermann, G.
A1 - Hinton, James Anthony
A1 - Hofmann, W.
A1 - Hoischen, Clemens
A1 - Holch, Tim Lukas
A1 - Holler, M.
A1 - Horns, D.
A1 - Huber, D.
A1 - Iwasaki, H.
A1 - Jamrozy, M.
A1 - Jankowsky, D.
A1 - Jankowsky, F.
A1 - Jardin-Blicq, A.
A1 - Jung-Richardt, I
A1 - Kastendieck, M. A.
A1 - Katarzynski, K.
A1 - Katsuragawa, M.
A1 - Katz, U.
A1 - Khangulyan, D.
A1 - Khelifi, B.
A1 - King, J.
A1 - Klepser, S.
A1 - Kluzniak, W.
A1 - Komin, Nu
A1 - Kosack, K.
A1 - Kostunin, D.
A1 - Kraus, M.
A1 - Lamanna, G.
A1 - Lau, J.
A1 - Lemiere, A.
A1 - Lemoine-Goumard, M.
A1 - Lenain, J-P
A1 - Leser, Eva
A1 - Levy, C.
A1 - Lohse, T.
A1 - Lypova, I
A1 - Mackey, J.
A1 - Majumdar, J.
A1 - Malyshev, D.
A1 - Marandon, V
A1 - Marcowith, Alexandre
A1 - Mares, A.
A1 - Mariaud, C.
A1 - Marti-Devesa, G.
A1 - Marx, R.
A1 - Maurin, G.
A1 - Meintjes, P. J.
A1 - Mitchell, A. M. W.
A1 - Moderski, R.
A1 - Mohamed, M.
A1 - Mohrmann, L.
A1 - Moore, C.
A1 - Moulin, Emmanuel
A1 - Muller, J.
A1 - Murach, T.
A1 - Nakashima, S.
A1 - de Naurois, M.
A1 - Ndiyavala, H.
A1 - Niederwanger, F.
A1 - Niemiec, J.
A1 - Oakes, L.
A1 - Odaka, H.
A1 - Ohm, S.
A1 - Wilhelmi, E. de Ona
A1 - Ostrowski, M.
A1 - Oya, I
A1 - Panter, M.
A1 - Parsons, R. D.
A1 - Perennes, C.
A1 - Petrucci, P-O
A1 - Peyaud, B.
A1 - Piel, Q.
A1 - Pita, S.
A1 - Poireau, V
A1 - Priyana Noel, A.
A1 - Prokhorov, D. A.
A1 - Prokoph, H.
A1 - Pühlhofer, G.
A1 - Punch, M.
A1 - Quirrenbach, A.
A1 - Raab, S.
A1 - Rauth, R.
A1 - Reimer, A.
A1 - Reimer, O.
A1 - Remy, Q.
A1 - Renaud, M.
A1 - Rieger, F.
A1 - Rinchiuso, L.
A1 - Romoli, C.
A1 - Rowell, G.
A1 - Rudak, B.
A1 - Ruiz-Velasco, E.
A1 - Sahakian, V
A1 - Saito, S.
A1 - Sanchez, David M.
A1 - Santangelo, Andrea
A1 - Sasaki, M.
A1 - Schlickeiser, R.
A1 - Schüssler, F.
A1 - Schulz, A.
A1 - Schutte, H.
A1 - Schwanke, U.
A1 - Schwemmer, S.
A1 - Seglar-Arroyo, M.
A1 - Senniappan, M.
A1 - Seyffert, A. S.
A1 - Shafi, N.
A1 - Shiningayamwe, K.
A1 - Simoni, R.
A1 - Sinha, A.
A1 - Sol, H.
A1 - Specovius, A.
A1 - Spir-Jacob, M.
A1 - Stawarz, L.
A1 - Steenkamp, R.
A1 - Stegmann, Christian
A1 - Steppa, Constantin Beverly
A1 - Takahashi, T.
A1 - Tavernier, T.
A1 - Taylor, A. M.
A1 - Terrier, R.
A1 - Tiziani, D.
A1 - Tluczykont, M.
A1 - Trichard, C.
A1 - Tsirou, M.
A1 - Tsuji, N.
A1 - Tuffs, R.
A1 - Uchiyama, Y.
A1 - van Der Walt, D. J.
A1 - van Eldik, C.
A1 - van Rensburg, C.
A1 - van Soelen, B.
A1 - Vasileiadis, G.
A1 - Veh, J.
A1 - Venter, C.
A1 - Vincent, P.
A1 - Vink, J.
A1 - Voisin, F.
A1 - Voelk, H. J.
A1 - Vuillaume, T.
A1 - Wadiasingh, Z.
A1 - Wagner, S. J.
A1 - White, R.
A1 - Wierzcholska, A.
A1 - Yang, R.
A1 - Yoneda, H.
A1 - Zacharias, Michael
A1 - Zanin, R.
A1 - Zdziarski, A. A.
A1 - Zech, Alraune
A1 - Ziegler, A.
A1 - Zorn, J.
A1 - Zywucka, N.
A1 - Meyer, M.
T1 - Constraints on the emission region of 3C 279 during strong flares in 2014 and 2015 through VHE gamma-ray observations with HESS
JF - Astronomy and astrophysics : an international weekly journal
N2 - The flat spectrum radio quasar 3C 279 is known to exhibit pronounced variability in the high-energy (100MeV < E < 100 GeV) gamma-ray band, which is continuously monitored with Fermi-LAT. During two periods of high activity in April 2014 and June 2015 target-of-opportunity observations were undertaken with the High Energy Stereoscopic System (H.E.S.S.) in the very-high-energy (VHE, E > 100 GeV) gamma-ray domain. While the observation in 2014 provides an upper limit, the observation in 2015 results in a signal with 8 : 7 sigma significance above an energy threshold of 66 GeV. No VHE variability was detected during the 2015 observations. The VHE photon spectrum is soft and described by a power-law index of 4.2 +/- 0.3. The H.E.S.S. data along with a detailed and contemporaneous multiwavelength data set provide constraints on the physical parameters of the emission region. The minimum distance of the emission region from the central black hole was estimated using two plausible geometries of the broad-line region and three potential intrinsic spectra. The emission region is confidently placed at r greater than or similar to 1 : 7 X 1017 cm from the black hole, that is beyond the assumed distance of the broad-line region. Time-dependent leptonic and lepto-hadronic one-zone models were used to describe the evolution of the 2015 flare. Neither model can fully reproduce the observations, despite testing various parameter sets. Furthermore, the H.E.S.S. data were used to derive constraints on Lorentz invariance violation given the large redshift of 3C 279.
KW - radiation mechanisms: non-thermal
KW - quasars: individual: 3C 279
KW - galaxies: active
KW - relativistic processes
Y1 - 2019
U6 - https://doi.org/10.1051/0004-6361/201935704
SN - 1432-0746
VL - 627
PB - EDP Sciences
CY - Les Ulis
ER -
TY - JOUR
A1 - Warrington, Nicole
A1 - Beaumont, Robin
A1 - Horikoshi, Momoko
A1 - Day, Felix R.
A1 - Helgeland, Øyvind
A1 - Laurin, Charles
A1 - Bacelis, Jonas
A1 - Peng, Shouneng
A1 - Hao, Ke
A1 - Feenstra, Bjarke
A1 - Wood, Andrew R.
A1 - Mahajan, Anubha
A1 - Tyrrell, Jessica
A1 - Robertson, Neil R.
A1 - Rayner, N. William
A1 - Qiao, Zhen
A1 - Moen, Gunn-Helen
A1 - Vaudel, Marc
A1 - Marsit, Carmen
A1 - Chen, Jia
A1 - Nodzenski, Michael
A1 - Schnurr, Theresia M.
A1 - Zafarmand, Mohammad Hadi
A1 - Bradfield, Jonathan P.
A1 - Grarup, Niels
A1 - Kooijman, Marjolein N.
A1 - Li-Gao, Ruifang
A1 - Geller, Frank
A1 - Ahluwalia, Tarunveer Singh
A1 - Paternoster, Lavinia
A1 - Rueedi, Rico
A1 - Huikari, Ville
A1 - Hottenga, Jouke-Jan
A1 - Lyytikäinen, Leo-Pekka
A1 - Cavadino, Alana
A1 - Metrustry, Sarah
A1 - Cousminer, Diana L.
A1 - Wu, Ying
A1 - Thiering, Elisabeth Paula
A1 - Wang, Carol A.
A1 - Have, Christian Theil
A1 - Vilor-Tejedor, Natalia
A1 - Joshi, Peter K.
A1 - Painter, Jodie N.
A1 - Ntalla, Ioanna
A1 - Myhre, Ronny
A1 - Pitkänen, Niina
A1 - van Leeuwen, Elisabeth M.
A1 - Joro, Raimo
A1 - Lagou, Vasiliki
A1 - Richmond, Rebecca C.
A1 - Espinosa, Ana
A1 - Barton, Sheila J.
A1 - Inskip, Hazel M.
A1 - Holloway, John W.
A1 - Santa-Marina, Loreto
A1 - Estivill, Xavier
A1 - Ang, Wei
A1 - Marsh, Julie A.
A1 - Reichetzeder, Christoph
A1 - Marullo, Letizia
A1 - Hocher, Berthold
A1 - Lunetta, Kathryn L.
A1 - Murabito, Joanne M.
A1 - Relton, Caroline L.
A1 - Kogevinas, Manolis
A1 - Chatzi, Leda
A1 - Allard, Catherine
A1 - Bouchard, Luigi
A1 - Hivert, Marie-France
A1 - Zhang, Ge
A1 - Muglia, Louis J.
A1 - Heikkinen, Jani
A1 - Morgen, Camilla S.
A1 - van Kampen, Antoine H. C.
A1 - van Schaik, Barbera D. C.
A1 - Mentch, Frank D.
A1 - Langenberg, Claudia
A1 - Scott, Robert A.
A1 - Zhao, Jing Hua
A1 - Hemani, Gibran
A1 - Ring, Susan M.
A1 - Bennett, Amanda J.
A1 - Gaulton, Kyle J.
A1 - Fernandez-Tajes, Juan
A1 - van Zuydam, Natalie R.
A1 - Medina-Gomez, Carolina
A1 - de Haan, Hugoline G.
A1 - Rosendaal, Frits R.
A1 - Kutalik, Zoltán
A1 - Marques-Vidal, Pedro
A1 - Das, Shikta
A1 - Willemsen, Gonneke
A1 - Mbarek, Hamdi
A1 - Müller-Nurasyid, Martina
A1 - Standl, Marie
A1 - Appel, Emil V. R.
A1 - Fonvig, Cilius Esmann
A1 - Trier, Caecilie
A1 - van Beijsterveldt, Catharina E. M.
A1 - Murcia, Mario
A1 - Bustamante, Mariona
A1 - Bonàs-Guarch, Sílvia
A1 - Hougaard, David M.
A1 - Mercader, Josep M.
A1 - Linneberg, Allan
A1 - Schraut, Katharina E.
A1 - Lind, Penelope A.
A1 - Medland, Sarah Elizabeth
A1 - Shields, Beverley M.
A1 - Knight, Bridget A.
A1 - Chai, Jin-Fang
A1 - Panoutsopoulou, Kalliope
A1 - Bartels, Meike
A1 - Sánchez, Friman
A1 - Stokholm, Jakob
A1 - Torrents, David
A1 - Vinding, Rebecca K.
A1 - Willems, Sara M.
A1 - Atalay, Mustafa
A1 - Chawes, Bo L.
A1 - Kovacs, Peter
A1 - Prokopenko, Inga
A1 - Tuke, Marcus A.
A1 - Yaghootkar, Hanieh
A1 - Ruth, Katherine S.
A1 - Jones, Samuel E.
A1 - Loh, Po-Ru
A1 - Murray, Anna
A1 - Weedon, Michael N.
A1 - Tönjes, Anke
A1 - Stumvoll, Michael
A1 - Michaelsen, Kim Fleischer
A1 - Eloranta, Aino-Maija
A1 - Lakka, Timo A.
A1 - van Duijn, Cornelia M.
A1 - Kiess, Wieland
A1 - Koerner, Antje
A1 - Niinikoski, Harri
A1 - Pahkala, Katja
A1 - Raitakari, Olli T.
A1 - Jacobsson, Bo
A1 - Zeggini, Eleftheria
A1 - Dedoussis, George V.
A1 - Teo, Yik-Ying
A1 - Saw, Seang-Mei
A1 - Montgomery, Grant W.
A1 - Campbell, Harry
A1 - Wilson, James F.
A1 - Vrijkotte, Tanja G. M.
A1 - Vrijheid, Martine
A1 - de Geus, Eco J. C. N.
A1 - Hayes, M. Geoffrey
A1 - Kadarmideen, Haja N.
A1 - Holm, Jens-Christian
A1 - Beilin, Lawrence J.
A1 - Pennell, Craig E.
A1 - Heinrich, Joachim
A1 - Adair, Linda S.
A1 - Borja, Judith B.
A1 - Mohlke, Karen L.
A1 - Eriksson, Johan G.
A1 - Widen, Elisabeth E.
A1 - Hattersley, Andrew T.
A1 - Spector, Tim D.
A1 - Kaehoenen, Mika
A1 - Viikari, Jorma S.
A1 - Lehtimaeki, Terho
A1 - Boomsma, Dorret I.
A1 - Sebert, Sylvain
A1 - Vollenweider, Peter
A1 - Sorensen, Thorkild I. A.
A1 - Bisgaard, Hans
A1 - Bonnelykke, Klaus
A1 - Murray, Jeffrey C.
A1 - Melbye, Mads
A1 - Nohr, Ellen A.
A1 - Mook-Kanamori, Dennis O.
A1 - Rivadeneira, Fernando
A1 - Hofman, Albert
A1 - Felix, Janine F.
A1 - Jaddoe, Vincent W. V.
A1 - Hansen, Torben
A1 - Pisinger, Charlotta
A1 - Vaag, Allan A.
A1 - Pedersen, Oluf
A1 - Uitterlinden, Andre G.
A1 - Jarvelin, Marjo-Riitta
A1 - Power, Christine
A1 - Hypponen, Elina
A1 - Scholtens, Denise M.
A1 - Lowe, William L.
A1 - Smith, George Davey
A1 - Timpson, Nicholas J.
A1 - Morris, Andrew P.
A1 - Wareham, Nicholas J.
A1 - Hakonarson, Hakon
A1 - Grant, Struan F. A.
A1 - Frayling, Timothy M.
A1 - Lawlor, Debbie A.
A1 - Njolstad, Pal R.
A1 - Johansson, Stefan
A1 - Ong, Ken K.
A1 - McCarthy, Mark I.
A1 - Perry, John R. B.
A1 - Evans, David M.
A1 - Freathy, Rachel M.
T1 - Maternal and fetal genetic effects on birth weight and their relevance to cardio-metabolic risk factors
JF - Nature genetics
N2 - Birth weight variation is influenced by fetal and maternal genetic and non-genetic factors, and has been reproducibly associated with future cardio-metabolic health outcomes. In expanded genome-wide association analyses of own birth weight (n = 321,223) and offspring birth weight (n = 230,069 mothers), we identified 190 independent association signals (129 of which are novel). We used structural equation modeling to decompose the contributions of direct fetal and indirect maternal genetic effects, then applied Mendelian randomization to illuminate causal pathways. For example, both indirect maternal and direct fetal genetic effects drive the observational relationship between lower birth weight and higher later blood pressure: maternal blood pressure-raising alleles reduce offspring birth weight, but only direct fetal effects of these alleles, once inherited, increase later offspring blood pressure. Using maternal birth weight-lowering genotypes to proxy for an adverse intrauterine environment provided no evidence that it causally raises offspring blood pressure, indicating that the inverse birth weight-blood pressure association is attributable to genetic effects, and not to intrauterine programming.
Y1 - 2019
SN - 1061-4036
SN - 1546-1718
VL - 51
IS - 5
SP - 804
EP - +
PB - Nature Publ. Group
CY - New York
ER -
TY - JOUR
A1 - Aarts, Alexander A.
A1 - Anderson, Joanna E.
A1 - Anderson, Christopher J.
A1 - Attridge, Peter R.
A1 - Attwood, Angela
A1 - Axt, Jordan
A1 - Babel, Molly
A1 - Bahnik, Stepan
A1 - Baranski, Erica
A1 - Barnett-Cowan, Michael
A1 - Bartmess, Elizabeth
A1 - Beer, Jennifer
A1 - Bell, Raoul
A1 - Bentley, Heather
A1 - Beyan, Leah
A1 - Binion, Grace
A1 - Borsboom, Denny
A1 - Bosch, Annick
A1 - Bosco, Frank A.
A1 - Bowman, Sara D.
A1 - Brandt, Mark J.
A1 - Braswell, Erin
A1 - Brohmer, Hilmar
A1 - Brown, Benjamin T.
A1 - Brown, Kristina
A1 - Bruening, Jovita
A1 - Calhoun-Sauls, Ann
A1 - Callahan, Shannon P.
A1 - Chagnon, Elizabeth
A1 - Chandler, Jesse
A1 - Chartier, Christopher R.
A1 - Cheung, Felix
A1 - Christopherson, Cody D.
A1 - Cillessen, Linda
A1 - Clay, Russ
A1 - Cleary, Hayley
A1 - Cloud, Mark D.
A1 - Cohn, Michael
A1 - Cohoon, Johanna
A1 - Columbus, Simon
A1 - Cordes, Andreas
A1 - Costantini, Giulio
A1 - Alvarez, Leslie D. Cramblet
A1 - Cremata, Ed
A1 - Crusius, Jan
A1 - DeCoster, Jamie
A1 - DeGaetano, Michelle A.
A1 - Della Penna, Nicolas
A1 - den Bezemer, Bobby
A1 - Deserno, Marie K.
A1 - Devitt, Olivia
A1 - Dewitte, Laura
A1 - Dobolyi, David G.
A1 - Dodson, Geneva T.
A1 - Donnellan, M. Brent
A1 - Donohue, Ryan
A1 - Dore, Rebecca A.
A1 - Dorrough, Angela
A1 - Dreber, Anna
A1 - Dugas, Michelle
A1 - Dunn, Elizabeth W.
A1 - Easey, Kayleigh
A1 - Eboigbe, Sylvia
A1 - Eggleston, Casey
A1 - Embley, Jo
A1 - Epskamp, Sacha
A1 - Errington, Timothy M.
A1 - Estel, Vivien
A1 - Farach, Frank J.
A1 - Feather, Jenelle
A1 - Fedor, Anna
A1 - Fernandez-Castilla, Belen
A1 - Fiedler, Susann
A1 - Field, James G.
A1 - Fitneva, Stanka A.
A1 - Flagan, Taru
A1 - Forest, Amanda L.
A1 - Forsell, Eskil
A1 - Foster, Joshua D.
A1 - Frank, Michael C.
A1 - Frazier, Rebecca S.
A1 - Fuchs, Heather
A1 - Gable, Philip
A1 - Galak, Jeff
A1 - Galliani, Elisa Maria
A1 - Gampa, Anup
A1 - Garcia, Sara
A1 - Gazarian, Douglas
A1 - Gilbert, Elizabeth
A1 - Giner-Sorolla, Roger
A1 - Glöckner, Andreas
A1 - Göllner, Lars
A1 - Goh, Jin X.
A1 - Goldberg, Rebecca
A1 - Goodbourn, Patrick T.
A1 - Gordon-McKeon, Shauna
A1 - Gorges, Bryan
A1 - Gorges, Jessie
A1 - Goss, Justin
A1 - Graham, Jesse
A1 - Grange, James A.
A1 - Gray, Jeremy
A1 - Hartgerink, Chris
A1 - Hartshorne, Joshua
A1 - Hasselman, Fred
A1 - Hayes, Timothy
A1 - Heikensten, Emma
A1 - Henninger, Felix
A1 - Hodsoll, John
A1 - Holubar, Taylor
A1 - Hoogendoorn, Gea
A1 - Humphries, Denise J.
A1 - Hung, Cathy O. -Y.
A1 - Immelman, Nathali
A1 - Irsik, Vanessa C.
A1 - Jahn, Georg
A1 - Jaekel, Frank
A1 - Jekel, Marc
A1 - Johannesson, Magnus
A1 - Johnson, Larissa G.
A1 - Johnson, David J.
A1 - Johnson, Kate M.
A1 - Johnston, William J.
A1 - Jonas, Kai
A1 - Joy-Gaba, Jennifer A.
A1 - Kappes, Heather Barry
A1 - Kelso, Kim
A1 - Kidwell, Mallory C.
A1 - Kim, Seung Kyung
A1 - Kirkhart, Matthew
A1 - Kleinberg, Bennett
A1 - Knezevic, Goran
A1 - Kolorz, Franziska Maria
A1 - Kossakowski, Jolanda J.
A1 - Krause, Robert Wilhelm
A1 - Krijnen, Job
A1 - Kuhlmann, Tim
A1 - Kunkels, Yoram K.
A1 - Kyc, Megan M.
A1 - Lai, Calvin K.
A1 - Laique, Aamir
A1 - Lakens, Daniel
A1 - Lane, Kristin A.
A1 - Lassetter, Bethany
A1 - Lazarevic, Ljiljana B.
A1 - LeBel, Etienne P.
A1 - Lee, Key Jung
A1 - Lee, Minha
A1 - Lemm, Kristi
A1 - Levitan, Carmel A.
A1 - Lewis, Melissa
A1 - Lin, Lin
A1 - Lin, Stephanie
A1 - Lippold, Matthias
A1 - Loureiro, Darren
A1 - Luteijn, Ilse
A1 - Mackinnon, Sean
A1 - Mainard, Heather N.
A1 - Marigold, Denise C.
A1 - Martin, Daniel P.
A1 - Martinez, Tylar
A1 - Masicampo, E. J.
A1 - Matacotta, Josh
A1 - Mathur, Maya
A1 - May, Michael
A1 - Mechin, Nicole
A1 - Mehta, Pranjal
A1 - Meixner, Johannes
A1 - Melinger, Alissa
A1 - Miller, Jeremy K.
A1 - Miller, Mallorie
A1 - Moore, Katherine
A1 - Möschl, Marcus
A1 - Motyl, Matt
A1 - Müller, Stephanie M.
A1 - Munafo, Marcus
A1 - Neijenhuijs, Koen I.
A1 - Nervi, Taylor
A1 - Nicolas, Gandalf
A1 - Nilsonne, Gustav
A1 - Nosek, Brian A.
A1 - Nuijten, Michele B.
A1 - Olsson, Catherine
A1 - Osborne, Colleen
A1 - Ostkamp, Lutz
A1 - Pavel, Misha
A1 - Penton-Voak, Ian S.
A1 - Perna, Olivia
A1 - Pernet, Cyril
A1 - Perugini, Marco
A1 - Pipitone, R. Nathan
A1 - Pitts, Michael
A1 - Plessow, Franziska
A1 - Prenoveau, Jason M.
A1 - Rahal, Rima-Maria
A1 - Ratliff, Kate A.
A1 - Reinhard, David
A1 - Renkewitz, Frank
A1 - Ricker, Ashley A.
A1 - Rigney, Anastasia
A1 - Rivers, Andrew M.
A1 - Roebke, Mark
A1 - Rutchick, Abraham M.
A1 - Ryan, Robert S.
A1 - Sahin, Onur
A1 - Saide, Anondah
A1 - Sandstrom, Gillian M.
A1 - Santos, David
A1 - Saxe, Rebecca
A1 - Schlegelmilch, Rene
A1 - Schmidt, Kathleen
A1 - Scholz, Sabine
A1 - Seibel, Larissa
A1 - Selterman, Dylan Faulkner
A1 - Shaki, Samuel
A1 - Simpson, William B.
A1 - Sinclair, H. Colleen
A1 - Skorinko, Jeanine L. M.
A1 - Slowik, Agnieszka
A1 - Snyder, Joel S.
A1 - Soderberg, Courtney
A1 - Sonnleitner, Carina
A1 - Spencer, Nick
A1 - Spies, Jeffrey R.
A1 - Steegen, Sara
A1 - Stieger, Stefan
A1 - Strohminger, Nina
A1 - Sullivan, Gavin B.
A1 - Talhelm, Thomas
A1 - Tapia, Megan
A1 - te Dorsthorst, Anniek
A1 - Thomae, Manuela
A1 - Thomas, Sarah L.
A1 - Tio, Pia
A1 - Traets, Frits
A1 - Tsang, Steve
A1 - Tuerlinckx, Francis
A1 - Turchan, Paul
A1 - Valasek, Milan
A1 - Van Aert, Robbie
A1 - van Assen, Marcel
A1 - van Bork, Riet
A1 - van de Ven, Mathijs
A1 - van den Bergh, Don
A1 - van der Hulst, Marije
A1 - van Dooren, Roel
A1 - van Doorn, Johnny
A1 - van Renswoude, Daan R.
A1 - van Rijn, Hedderik
A1 - Vanpaemel, Wolf
A1 - Echeverria, Alejandro Vasquez
A1 - Vazquez, Melissa
A1 - Velez, Natalia
A1 - Vermue, Marieke
A1 - Verschoor, Mark
A1 - Vianello, Michelangelo
A1 - Voracek, Martin
A1 - Vuu, Gina
A1 - Wagenmakers, Eric-Jan
A1 - Weerdmeester, Joanneke
A1 - Welsh, Ashlee
A1 - Westgate, Erin C.
A1 - Wissink, Joeri
A1 - Wood, Michael
A1 - Woods, Andy
A1 - Wright, Emily
A1 - Wu, Sining
A1 - Zeelenberg, Marcel
A1 - Zuni, Kellylynn
T1 - Estimating the reproducibility of psychological science
JF - Science
N2 - Reproducibility is a defining feature of science, but the extent to which it characterizes current research is unknown. We conducted replications of 100 experimental and correlational studies published in three psychology journals using high-powered designs and original materials when available. Replication effects were half the magnitude of original effects, representing a substantial decline. Ninety-seven percent of original studies had statistically significant results. Thirty-six percent of replications had statistically significant results; 47% of original effect sizes were in the 95% confidence interval of the replication effect size; 39% of effects were subjectively rated to have replicated the original result; and if no bias in original results is assumed, combining original and replication results left 68% with statistically significant effects. Correlational tests suggest that replication success was better predicted by the strength of original evidence than by characteristics of the original and replication teams.
Y1 - 2015
U6 - https://doi.org/10.1126/science.aac4716
SN - 1095-9203
SN - 0036-8075
VL - 349
IS - 6251
PB - American Assoc. for the Advancement of Science
CY - Washington
ER -
TY - JOUR
A1 - Soliveres, Santiago
A1 - van der Plas, Fons
A1 - Manning, Peter
A1 - Prati, Daniel
A1 - Gossner, Martin M.
A1 - Renner, Swen C.
A1 - Alt, Fabian
A1 - Arndt, Hartmut
A1 - Baumgartner, Vanessa
A1 - Binkenstein, Julia
A1 - Birkhofer, Klaus
A1 - Blaser, Stefan
A1 - Blüthgen, Nico
A1 - Boch, Steffen
A1 - Böhm, Stefan
A1 - Börschig, Carmen
A1 - Buscot, Francois
A1 - Diekötter, Tim
A1 - Heinze, Johannes
A1 - Hölzel, Norbert
A1 - Jung, Kirsten
A1 - Klaus, Valentin H.
A1 - Kleinebecker, Till
A1 - Klemmer, Sandra
A1 - Krauss, Jochen
A1 - Lange, Markus
A1 - Morris, E. Kathryn
A1 - Müller, Jörg
A1 - Oelmann, Yvonne
A1 - Overmann, Jörg
A1 - Pasalic, Esther
A1 - Rillig, Matthias C.
A1 - Schaefer, H. Martin
A1 - Schloter, Michael
A1 - Schmitt, Barbara
A1 - Schöning, Ingo
A1 - Schrumpf, Marion
A1 - Sikorski, Johannes
A1 - Socher, Stephanie A.
A1 - Solly, Emily F.
A1 - Sonnemann, Ilja
A1 - Sorkau, Elisabeth
A1 - Steckel, Juliane
A1 - Steffan-Dewenter, Ingolf
A1 - Stempfhuber, Barbara
A1 - Tschapka, Marco
A1 - Türke, Manfred
A1 - Venter, Paul C.
A1 - Weiner, Christiane N.
A1 - Weisser, Wolfgang W.
A1 - Werner, Michael
A1 - Westphal, Catrin
A1 - Wilcke, Wolfgang
A1 - Wolters, Volkmar
A1 - Wubet, Tesfaye
A1 - Wurst, Susanne
A1 - Fischer, Markus
A1 - Allan, Eric
T1 - Biodiversity at multiple trophic levels is needed for ecosystem multifunctionality
JF - Nature : the international weekly journal of science
Y1 - 2016
U6 - https://doi.org/10.1038/nature19092
SN - 0028-0836
SN - 1476-4687
VL - 536
SP - 456
EP - +
PB - Nature Publ. Group
CY - London
ER -
TY - JOUR
A1 - Grott, Matthias
A1 - Knollenberg, J.
A1 - Hamm, M.
A1 - Ogawa, K.
A1 - Jaumann, R.
A1 - Otto, Katharina Alexandra
A1 - Delbo, M.
A1 - Michel, Patrick
A1 - Biele, J.
A1 - Neumann, Wladimir
A1 - Knapmeyer, Martin
A1 - Kührt, E.
A1 - Senshu, H.
A1 - Okada, T.
A1 - Helbert, Jorn
A1 - Maturilli, A.
A1 - Müller, N.
A1 - Hagermann, A.
A1 - Sakatani, Naoya
A1 - Tanaka, S.
A1 - Arai, T.
A1 - Mottola, Stefano
A1 - Tachibana, Shogo
A1 - Pelivan, Ivanka
A1 - Drube, Line
A1 - Vincent, J-B
A1 - Yano, Hajime
A1 - Pilorget, C.
A1 - Matz, K. D.
A1 - Schmitz, N.
A1 - Koncz, A.
A1 - Schröder, Stefan E.
A1 - Trauthan, F.
A1 - Schlotterer, Markus
A1 - Krause, C.
A1 - Ho, T-M
A1 - Moussi-Soffys, A.
T1 - Low thermal conductivity boulder with high porosity identified on C-type asteroid (162173) Ryugu
JF - Nature astronomy
N2 - C-type asteroids are among the most pristine objects in the Solar System, but little is known about their interior structure and surface properties. Telescopic thermal infrared observations have so far been interpreted in terms of a regolith-covered surface with low thermal conductivity and particle sizes in the centimetre range. This includes observations of C-type asteroid (162173) Ryugu1,2,3. However, on arrival of the Hayabusa2 spacecraft at Ryugu, a regolith cover of sand- to pebble-sized particles was found to be absent4,5 (R.J. et al., manuscript in preparation). Rather, the surface is largely covered by cobbles and boulders, seemingly incompatible with the remote-sensing infrared observations. Here we report on in situ thermal infrared observations of a boulder on the C-type asteroid Ryugu. We found that the boulder’s thermal inertia was much lower than anticipated based on laboratory measurements of meteorites, and that a surface covered by such low-conductivity boulders would be consistent with remote-sensing observations. Our results furthermore indicate high boulder porosities as well as a low tensile strength in the few hundred kilopascal range. The predicted low tensile strength confirms the suspected observational bias6 in our meteorite collections, as such asteroidal material would be too frail to survive atmospheric entry7
Y1 - 2019
U6 - https://doi.org/10.1038/s41550-019-0832-x
SN - 2397-3366
VL - 3
IS - 11
SP - 971
EP - 976
PB - Nature Publishing Group
CY - London
ER -
TY - JOUR
A1 - Grott, Matthias
A1 - Knollenberg, J.
A1 - Hamm, M.
A1 - Ogawa, K.
A1 - Jaumann, R.
A1 - Otto, Katharina Alexandra
A1 - Delbo, M.
A1 - Michel, P.
A1 - Biele, J.
A1 - Neumann, W.
A1 - Knapmeyer, M.
A1 - Kuehrt, E.
A1 - Senshu, H.
A1 - Okada, T.
A1 - Helbert, J.
A1 - Maturilli, A.
A1 - Müller, N.
A1 - Hagermann, A.
A1 - Sakatani, N.
A1 - Tanaka, S.
A1 - Arai, T.
A1 - Mottola, S.
A1 - Tachibana, S.
A1 - Pelivan, Ivanka
A1 - Drube, L.
A1 - Vincent, J-B
A1 - Yano, H.
A1 - Pilorget, C.
A1 - Matz, K. D.
A1 - Schmitz, N.
A1 - Koncz, A.
A1 - Schröder, S. E.
A1 - Trauthan, F.
A1 - Schlotterer, M.
A1 - Krause, C.
A1 - Ho, T-M
A1 - Moussi-Soffys, A.
T1 - Low thermal conductivity boulder with high porosity identified on C-type asteroid (162173) Ryugu
JF - Nature astronomy
N2 - C-type asteroids are among the most pristine objects in the Solar System, but little is known about their interior structure and surface properties. Telescopic thermal infrared observations have so far been interpreted in terms of a regolith-covered surface with low thermal conductivity and particle sizes in the centimetre range. This includes observations of C-type asteroid (162173) Ryugu1,2,3. However, on arrival of the Hayabusa2 spacecraft at Ryugu, a regolith cover of sand- to pebble-sized particles was found to be absent4,5 (R.J. et al., manuscript in preparation). Rather, the surface is largely covered by cobbles and boulders, seemingly incompatible with the remote-sensing infrared observations. Here we report on in situ thermal infrared observations of a boulder on the C-type asteroid Ryugu. We found that the boulder’s thermal inertia was much lower than anticipated based on laboratory measurements of meteorites, and that a surface covered by such low-conductivity boulders would be consistent with remote-sensing observations. Our results furthermore indicate high boulder porosities as well as a low tensile strength in the few hundred kilopascal range. The predicted low tensile strength confirms the suspected observational bias6 in our meteorite collections, as such asteroidal material would be too frail to survive atmospheric entry7.
Y1 - 2020
U6 - https://doi.org/10.1038/s41550-019-0832-x
SN - 2397-3366
VL - 3
IS - 11
SP - 971
EP - 976
PB - Nature Publishing Group
CY - London
ER -
TY - JOUR
A1 - Read, Betsy A.
A1 - Kegel, Jessica
A1 - Klute, Mary J.
A1 - Kuo, Alan
A1 - Lefebvre, Stephane C.
A1 - Maumus, Florian
A1 - Mayer, Christoph
A1 - Miller, John
A1 - Monier, Adam
A1 - Salamov, Asaf
A1 - Young, Jeremy
A1 - Aguilar, Maria
A1 - Claverie, Jean-Michel
A1 - Frickenhaus, Stephan
A1 - Gonzalez, Karina
A1 - Herman, Emily K.
A1 - Lin, Yao-Cheng
A1 - Napier, Johnathan
A1 - Ogata, Hiroyuki
A1 - Sarno, Analissa F.
A1 - Shmutz, Jeremy
A1 - Schroeder, Declan
A1 - de Vargas, Colomban
A1 - Verret, Frederic
A1 - von Dassow, Peter
A1 - Valentin, Klaus
A1 - Van de Peer, Yves
A1 - Wheeler, Glen
A1 - Dacks, Joel B.
A1 - Delwiche, Charles F.
A1 - Dyhrman, Sonya T.
A1 - Glöckner, Gernot
A1 - John, Uwe
A1 - Richards, Thomas
A1 - Worden, Alexandra Z.
A1 - Zhang, Xiaoyu
A1 - Grigoriev, Igor V.
A1 - Allen, Andrew E.
A1 - Bidle, Kay
A1 - Borodovsky, M.
A1 - Bowler, C.
A1 - Brownlee, Colin
A1 - Cock, J. Mark
A1 - Elias, Marek
A1 - Gladyshev, Vadim N.
A1 - Groth, Marco
A1 - Guda, Chittibabu
A1 - Hadaegh, Ahmad
A1 - Iglesias-Rodriguez, Maria Debora
A1 - Jenkins, J.
A1 - Jones, Bethan M.
A1 - Lawson, Tracy
A1 - Leese, Florian
A1 - Lindquist, Erika
A1 - Lobanov, Alexei
A1 - Lomsadze, Alexandre
A1 - Malik, Shehre-Banoo
A1 - Marsh, Mary E.
A1 - Mackinder, Luke
A1 - Mock, Thomas
A1 - Müller-Röber, Bernd
A1 - Pagarete, Antonio
A1 - Parker, Micaela
A1 - Probert, Ian
A1 - Quesneville, Hadi
A1 - Raines, Christine
A1 - Rensing, Stefan A.
A1 - Riano-Pachon, Diego Mauricio
A1 - Richier, Sophie
A1 - Rokitta, Sebastian
A1 - Shiraiwa, Yoshihiro
A1 - Soanes, Darren M.
A1 - van der Giezen, Mark
A1 - Wahlund, Thomas M.
A1 - Williams, Bryony
A1 - Wilson, Willie
A1 - Wolfe, Gordon
A1 - Wurch, Louie L.
T1 - Pan genome of the phytoplankton Emiliania underpins its global distribution
JF - Nature : the international weekly journal of science
N2 - Coccolithophores have influenced the global climate for over 200 million years(1). These marine phytoplankton can account for 20 per cent of total carbon fixation in some systems(2). They form blooms that can occupy hundreds of thousands of square kilometres and are distinguished by their elegantly sculpted calcium carbonate exoskeletons (coccoliths), rendering them visible from space(3). Although coccolithophores export carbon in the form of organic matter and calcite to the sea floor, they also release CO2 in the calcification process. Hence, they have a complex influence on the carbon cycle, driving either CO2 production or uptake, sequestration and export to the deep ocean(4). Here we report the first haptophyte reference genome, from the coccolithophore Emiliania huxleyi strain CCMP1516, and sequences from 13 additional isolates. Our analyses reveal a pan genome (core genes plus genes distributed variably between strains) probably supported by an atypical complement of repetitive sequence in the genome. Comparisons across strains demonstrate that E. huxleyi, which has long been considered a single species, harbours extensive genome variability reflected in different metabolic repertoires. Genome variability within this species complex seems to underpin its capacity both to thrive in habitats ranging from the equator to the subarctic and to form large-scale episodic blooms under a wide variety of environmental conditions.
Y1 - 2013
U6 - https://doi.org/10.1038/nature12221
SN - 0028-0836
SN - 1476-4687
VL - 499
IS - 7457
SP - 209
EP - 213
PB - Nature Publ. Group
CY - London
ER -
TY - JOUR
A1 - Christakoudi, Sofa
A1 - Tsilidis, Konstantinos K.
A1 - Muller, David C.
A1 - Freisling, Heinz
A1 - Weiderpass, Elisabete
A1 - Overvad, Kim
A1 - Söderberg, Stefan
A1 - Häggström, Christel
A1 - Pischon, Tobias
A1 - Dahm, Christina C.
A1 - Zhang, Jie
A1 - Tjønneland, Anne
A1 - Schulze, Matthias Bernd
T1 - A Body Shape Index (ABSI) achieves better mortality risk stratification than alternative indices of abdominal obesity: results from a large European cohort
JF - Scientific Reports
N2 - Abdominal and general adiposity are independently associated with mortality, but there is no consensus on how best to assess abdominal adiposity. We compared the ability of alternative waist indices to complement body mass index (BMI) when assessing all-cause mortality. We used data from 352,985 participants in the European Prospective Investigation into Cancer and Nutrition (EPIC) and Cox proportional hazards models adjusted for other risk factors. During a mean follow-up of 16.1 years, 38,178 participants died. Combining in one model BMI and a strongly correlated waist index altered the association patterns with mortality, to a predominantly negative association for BMI and a stronger positive association for the waist index, while combining BMI with the uncorrelated A Body Shape Index (ABSI) preserved the association patterns. Sex-specific cohort-wide quartiles of waist indices correlated with BMI could not separate high-risk from low-risk individuals within underweight (BMI<18.5 kg/m(2)) or obese (BMI30 kg/m(2)) categories, while the highest quartile of ABSI separated 18-39% of the individuals within each BMI category, which had 22-55% higher risk of death. In conclusion, only a waist index independent of BMI by design, such as ABSI, complements BMI and enables efficient risk stratification, which could facilitate personalisation of screening, treatment and monitoring.
KW - all-cause mortality
KW - anthropometric measures
KW - mass index
KW - overweight
KW - cancer
KW - prediction
KW - adiposity
KW - size
Y1 - 2020
VL - 10
IS - 1
PB - Springer Nature
CY - Berlin
ER -
TY - GEN
A1 - Christakoudi, Sofa
A1 - Tsilidis, Konstantinos K.
A1 - Muller, David C.
A1 - Freisling, Heinz
A1 - Weiderpass, Elisabete
A1 - Overvad, Kim
A1 - Söderberg, Stefan
A1 - Häggström, Christel
A1 - Pischon, Tobias
A1 - Dahm, Christina C.
A1 - Zhang, Jie
A1 - Tjønneland, Anne
A1 - Schulze, Matthias Bernd
T1 - A Body Shape Index (ABSI) achieves better mortality risk stratification than alternative indices of abdominal obesity: results from a large European cohort
T2 - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2 - Abdominal and general adiposity are independently associated with mortality, but there is no consensus on how best to assess abdominal adiposity. We compared the ability of alternative waist indices to complement body mass index (BMI) when assessing all-cause mortality. We used data from 352,985 participants in the European Prospective Investigation into Cancer and Nutrition (EPIC) and Cox proportional hazards models adjusted for other risk factors. During a mean follow-up of 16.1 years, 38,178 participants died. Combining in one model BMI and a strongly correlated waist index altered the association patterns with mortality, to a predominantly negative association for BMI and a stronger positive association for the waist index, while combining BMI with the uncorrelated A Body Shape Index (ABSI) preserved the association patterns. Sex-specific cohort-wide quartiles of waist indices correlated with BMI could not separate high-risk from low-risk individuals within underweight (BMI<18.5 kg/m(2)) or obese (BMI30 kg/m(2)) categories, while the highest quartile of ABSI separated 18-39% of the individuals within each BMI category, which had 22-55% higher risk of death. In conclusion, only a waist index independent of BMI by design, such as ABSI, complements BMI and enables efficient risk stratification, which could facilitate personalisation of screening, treatment and monitoring.
T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1200
KW - all-cause mortality
KW - anthropometric measures
KW - mass index
KW - overweight
KW - cancer
KW - prediction
KW - adiposity
KW - size
Y1 - 2020
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-525827
SN - 1866-8372
IS - 1
ER -
TY - JOUR
A1 - Gross, M.
A1 - Müller, David C.
A1 - Nothofer, Heinz-Georg
A1 - Scherf, Ullrich
A1 - Neher, Dieter
A1 - Bräuchler, C.
A1 - Meerholz, Klaus
T1 - Improving the performance of doped p-conjugated polymers for use in organic light-emitting diodes
Y1 - 2000
ER -
TY - JOUR
A1 - Gossner, Martin M.
A1 - Lewinsohn, Thomas M.
A1 - Kahl, Tiemo
A1 - Grassein, Fabrice
A1 - Boch, Steffen
A1 - Prati, Daniel
A1 - Birkhofer, Klaus
A1 - Renner, Swen C.
A1 - Sikorski, Johannes
A1 - Wubet, Tesfaye
A1 - Arndt, Hartmut
A1 - Baumgartner, Vanessa
A1 - Blaser, Stefan
A1 - Blüthgen, Nico
A1 - Börschig, Carmen
A1 - Buscot, Francois
A1 - Diekötter, Tim
A1 - Jorge, Leonardo Re
A1 - Jung, Kirsten
A1 - Keyel, Alexander C.
A1 - Klein, Alexandra-Maria
A1 - Klemmer, Sandra
A1 - Krauss, Jochen
A1 - Lange, Markus
A1 - Müller, Jörg
A1 - Overmann, Jörg
A1 - Pasalic, Esther
A1 - Penone, Caterina
A1 - Perovic, David J.
A1 - Purschke, Oliver
A1 - Schall, Peter
A1 - Socher, Stephanie A.
A1 - Sonnemann, Ilja
A1 - Tschapka, Marco
A1 - Tscharntke, Teja
A1 - Türke, Manfred
A1 - Venter, Paul Christiaan
A1 - Weiner, Christiane N.
A1 - Werner, Michael
A1 - Wolters, Volkmar
A1 - Wurst, Susanne
A1 - Westphal, Catrin
A1 - Fischer, Markus
A1 - Weisser, Wolfgang W.
A1 - Allan, Eric
T1 - Land-use intensification causes multitrophic homogenization of grassland communities
JF - Nature : the international weekly journal of science
N2 - Land-use intensification is a major driver of biodiversity loss(1,2). Alongside reductions in local species diversity, biotic homogenization at larger spatial scales is of great concern for conservation. Biotic homogenization means a decrease in beta-diversity (the compositional dissimilarity between sites). Most studies have investigated losses in local (alpha)-diversity(1,3) and neglected biodiversity loss at larger spatial scales. Studies addressing beta-diversity have focused on single or a few organism groups (for example, ref. 4), and it is thus unknown whether land-use intensification homogenizes communities at different trophic levels, above-and belowground. Here we show that even moderate increases in local land-use intensity (LUI) cause biotic homogenization across microbial, plant and animal groups, both above- and belowground, and that this is largely independent of changes in alpha-diversity. We analysed a unique grassland biodiversity dataset, with abundances of more than 4,000 species belonging to 12 trophic groups. LUI, and, in particular, high mowing intensity, had consistent effects on beta-diversity across groups, causing a homogenization of soil microbial, fungal pathogen, plant and arthropod communities. These effects were nonlinear and the strongest declines in beta-diversity occurred in the transition from extensively managed to intermediate intensity grassland. LUI tended to reduce local alpha-diversity in aboveground groups, whereas the alpha-diversity increased in belowground groups. Correlations between the alpha-diversity of different groups, particularly between plants and their consumers, became weaker at high LUI. This suggests a loss of specialist species and is further evidence for biotic homogenization. The consistently negative effects of LUI on landscape-scale biodiversity underscore the high value of extensively managed grasslands for conserving multitrophic biodiversity and ecosystem service provision. Indeed, biotic homogenization rather than local diversity loss could prove to be the most substantial consequence of land-use intensification.
Y1 - 2016
U6 - https://doi.org/10.1038/nature20575
SN - 0028-0836
SN - 1476-4687
VL - 540
SP - 266
EP - +
PB - Nature Publ. Group
CY - London
ER -
TY - JOUR
A1 - Allan, Eric
A1 - Bossdorf, Oliver
A1 - Dormann, Carsten F.
A1 - Prati, Daniel
A1 - Gossner, Martin M.
A1 - Tscharntke, Teja
A1 - Blüthgen, Nico
A1 - Bellach, Michaela
A1 - Birkhofer, Klaus
A1 - Boch, Steffen
A1 - Böhm, Stefan
A1 - Börschig, Carmen
A1 - Chatzinotas, Antonis
A1 - Christ, Sabina
A1 - Daniel, Rolf
A1 - Diekötter, Tim
A1 - Fischer, Christiane
A1 - Friedl, Thomas
A1 - Glaser, Karin
A1 - Hallmann, Christine
A1 - Hodac, Ladislav
A1 - Hölzel, Norbert
A1 - Jung, Kirsten
A1 - Klein, Alexandra-Maria
A1 - Klaus, Valentin H.
A1 - Kleinebecker, Till
A1 - Krauss, Jochen
A1 - Lange, Markus
A1 - Morris, E. Kathryn
A1 - Müller, Jörg
A1 - Nacke, Heiko
A1 - Pasalic, Esther
A1 - Rillig, Matthias C.
A1 - Rothenwoehrer, Christoph
A1 - Schally, Peter
A1 - Scherber, Christoph
A1 - Schulze, Waltraud X.
A1 - Socher, Stephanie A.
A1 - Steckel, Juliane
A1 - Steffan-Dewenter, Ingolf
A1 - Türke, Manfred
A1 - Weiner, Christiane N.
A1 - Werner, Michael
A1 - Westphal, Catrin
A1 - Wolters, Volkmar
A1 - Wubet, Tesfaye
A1 - Gockel, Sonja
A1 - Gorke, Martin
A1 - Hemp, Andreas
A1 - Renner, Swen C.
A1 - Schöning, Ingo
A1 - Pfeiffer, Simone
A1 - König-Ries, Birgitta
A1 - Buscot, Francois
A1 - Linsenmair, Karl Eduard
A1 - Schulze, Ernst-Detlef
A1 - Weisser, Wolfgang W.
A1 - Fischer, Markus
T1 - Interannual variation in land-use intensity enhances grassland multidiversity
JF - Proceedings of the National Academy of Sciences of the United States of America
N2 - Although temporal heterogeneity is a well-accepted driver of biodiversity, effects of interannual variation in land-use intensity (LUI) have not been addressed yet. Additionally, responses to land use can differ greatly among different organisms; therefore, overall effects of land-use on total local biodiversity are hardly known. To test for effects of LUI (quantified as the combined intensity of fertilization, grazing, and mowing) and interannual variation in LUI (SD in LUI across time), we introduce a unique measure of whole-ecosystem biodiversity, multidiversity. This synthesizes individual diversity measures across up to 49 taxonomic groups of plants, animals, fungi, and bacteria from 150 grasslands. Multidiversity declined with increasing LUI among grasslands, particularly for rarer species and aboveground organisms, whereas common species and belowground groups were less sensitive. However, a high level of interannual variation in LUI increased overall multidiversity at low LUI and was even more beneficial for rarer species because it slowed the rate at which the multidiversity of rare species declined with increasing LUI. In more intensively managed grasslands, the diversity of rarer species was, on average, 18% of the maximum diversity across all grasslands when LUI was static over time but increased to 31% of the maximum when LUI changed maximally over time. In addition to decreasing overall LUI, we suggest varying LUI across years as a complementary strategy to promote biodiversity conservation.
KW - biodiversity loss
KW - agricultural grasslands
KW - Biodiversity Exploratories
Y1 - 2014
U6 - https://doi.org/10.1073/pnas.1312213111
SN - 0027-8424
VL - 111
IS - 1
SP - 308
EP - 313
PB - National Acad. of Sciences
CY - Washington
ER -
TY - JOUR
A1 - Müller, C.
A1 - Dibbern, P
T1 - Selbstorganisiertes Wissensmanagement in Unternehmen auf Basis der Wiki-Technologie : ein Anwendungsfall
Y1 - 2006
SN - 978-3- 89864-384-9
ER -
TY - JOUR
A1 - Müller, C.
A1 - Birn, Lukas
T1 - Wikis for collaborative software documentation
Y1 - 2006
ER -
TY - JOUR
A1 - Meinecke, Frank C.
A1 - Ziehe, Andreas
A1 - Kurths, Jürgen
A1 - Müller, Klaus-Robert
T1 - Measuring phase synchronization of superimposed signals
N2 - Phase synchronization is an important phenomenon that occurs in a wide variety of complex oscillatory processes. Measuring phase synchronization can therefore help to gain fundamental insight into nature. In this Letter we point out that synchronization analysis techniques can detect spurious synchronization, if they are fed with a superposition of signals such as in electroencephalography or magnetoencephalography data. We show how techniques from blind source separation can help to nevertheless measure the true synchronization and avoid such pitfalls
Y1 - 2005
SN - 0031-9007
ER -
TY - JOUR
A1 - Nolte, Guido
A1 - Meinecke, Frank C.
A1 - Ziehe, Andreas
A1 - Müller, Klaus-Robert
T1 - Identifying interactions in mixed and noisy complex systems
N2 - We present a technique that identifies truly interacting subsystems of a complex system from multichannel data if the recordings are an unknown linear and instantaneous mixture of the true sources. The method is valid for arbitrary noise structure. For this, a blind source separation technique is proposed that diagonalizes antisymmetrized cross- correlation or cross-spectral matrices. The resulting decomposition finds truly interacting subsystems blindly and suppresses any spurious interaction stemming from the mixture. The usefulness of this interacting source analysis is demonstrated in simulations and for real electroencephalography data
Y1 - 2006
UR - http://pre.aps.org/
U6 - https://doi.org/10.1103/Physreve.73.051913
ER -
TY - JOUR
A1 - Bahrs, Julian
A1 - Müller, C.
T1 - Wissensnachfrage-orientierte Gestaltung von Softwareentwicklungsprozessen
N2 - Die zunehmend dynamische Umwelt erfordert steigende Adaptivität von Softwareentwicklungsprozessen. Dem kann durch eine Prozessgestaltung nach Methoden des geschäftsprozessorientierten Wissensmanagements und dem damit vollzogenen Paradigmenwechsel zur nachfrageorientierten Wissensverteilung begegnet werden. In diesem Beitrag wird die Analyse einer ausgewählten Instanz eines mit der KMDL-SE beschriebenen Softwareentwicklungsprozesses vorgestellt
Y1 - 2005
UR - http://wi.uni-potsdam.de
ER -