Accès ouvert déclaré
2020
article
Probing the Magnetic Field in the GW170817 Outflow Using H.E.S.S. Observations
H. Abdalla, R. Adam, F. Aharonian, F. Ait Benkhali, E. O. Angüner, Masanori Arakawa, Cornelia Arcaro, Céline Armand, T. P. Armstrong, Halim Ashkar, Michael Backes, Vardan Baghmanyan, V. Barbosa Martins, A. Barnacka, M. Barnard, Y. Becherini, D. Berge, K. Bernlöhr, R. Blackwell, M. Böttcher, C. Boisson, J. Bolmont, S. Bonnefoy, J. Bregeon, M. Breuhaus, F. Brun, P. Brun, M. Bryan, M. Büchele, T. Bulik, T. Bylund, Sami Caroff, A. Carosi, S. Casanova, M. Cerruti, T. Chand, S. Chandra, A. Chen, Garret Cotter, M. Curyło, I. D. Davids, J. Davies, C. Deil, J. Devin, P. deWilt, L. Dirson, A. Djannati-Ataı̈, A. Dmytriiev, Axel Donath, Victor Doroshenko, J. Dyks, K. Egberts, F. Eichhorn, G. Emery, J.-P. Ernenwein, S. Eschbach, Kirsty Feijen, S. Fegan, A. Fiaßon, G. Fontaine, S. Funk, M. Füßling, S. Gabici, Y. A. Gallant, G. Giavitto, Luca Giunti, D. Glawion, J. F. Glicenstein, D. Gottschall, M.-H. Grondin, Joachim Hahn, M. Haupt, G. Heinzelmann, G. Hermann, J. A. Hinton, W. Hofmann, C. Hoischen, T. L. Holch, M. Holler, M. Hörbe, D. Horns, David Miles Huber, H. Iwasaki, M. Jamrozy, D. Jankowsky, F. Jankowsky, A. Jardin-Blicq, Vikas Joshi, I. Jung-Richardt, M. A. Kastendieck, K. Katarzyński, M. Katsuragawa, U. Katz, D. Khangulyan, B. Khélifi, S. Klepser, W. Kluźniak, Nu. Komin, R. Konno, K. Kosack, D. Kostunin, M. Kreter, G. Lamanna, A. Lemière, M. Lemoine‐Goumard, J.-P. Lenain, E. Leser, Christelle Levy, T. Lohse, I. Lypova, Jonathan Mackey, Jhilik Majumdar, D. Malyshev, D. Malyshev, V. Marandon, ¶. Marchegiani, A. Marcowith, A. Mares, G. Martí-Devesa, R. Marx, G. Maurin, P. J. Meintjes, R. Moderski, M. Mohamed, L. Mohrmann, C. Moore, P. Morris, E. Moulin, J. M. Muller, T. Murach, S. Nakashima, K. Nakashima, M. de Naurois, H. Ndiyavala, F. Niederwanger, J. Niemiec, L. Oakes, P. O’Brien, H. Odaka, S. Ohm, E. de Oña Wilhelmi, M. Ostrowski, M. Panter, R. D. Parsons, B. Peyaud, Q. Piel, S. Pita, Vincent Poireau, A. Priyana Noel, D. A. Prokhorov, H. Prokoph, G. Pühlhofer, M. Punch, A. Quirrenbach, S. Raab, R. Rauth, A. Reimer, O. Reimer, Q. Remy, M. Renaud, Frank Rieger, Lucia Rinchiuso, C. Romoli, Gavin Rowell, B. Rudak, E. Ruiz-Velasco, V. Sahakian, Simon Sailer, S. Saito, D. A. Sánchez, A. Santangelo, M. Sasaki, M. Scalici, R. Schlickeiser, F. Schüßler, A. Schulz, H. M. Schutte, U. Schwanke, S. Schwemmer, M. Seglar-Arroyo, M. Senniappan, A. S. Seyffert, N. Shafi, K. Shiningayamwe, R. Simoni, A. Sinha, H. Sol, A. Specovius, S. Spencer, M. Spir-Jacob, Ł. Stawarz, R. Steenkamp, C. Stegmann, C. Steppa, T. Takahashi, T. Tavernier, Andrew M. Taylor, R. Terrier, D. Tiziani, M. Tluczykont, L. Tomankova, C. Trichard, M. Tsirou, N. Tsuji, R. Tuffs, Y. Uchiyama, D. J. van der Walt, C. van Eldik, C. van Rensburg, Brian van Soelen, G. Vasileiadis, J. Veh, C. Venter, P. Vincent, J. Vink, H. J. Völk, Zorawar Wadiasingh, S. J. Wagner, J. Watson, Felix Werner, R. White, A. Wierzcholska, Ruizhi Yang, H. Yoneda, M. Zacharias, R. Zanin, A. A. Zdziarski, A. Zech, J. Zorn, N. Żywucka, Xavier Rodrigues
18Citations signalées, ce qui n’est pas une note de qualité
53Institutions déclarées
13Pays d’affiliation déclarés
Rattachement africain : Afrique du Sud, fr, ie, de, jp, gb, Namibie, pl, se, au, nl, at, am.
Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Abstract The detection of the first electromagnetic counterpart to the binary neutron star (BNS) merger remnant GW170817 established the connection between short γ -ray bursts and BNS mergers. It also confirmed the forging of heavy elements in the ejecta (a so-called kilonova) via the r-process nucleosynthesis. The appearance of nonthermal radio and X-ray emission, as well as the brightening, which lasted more than 100 days, were somewhat unexpected. Current theoretical models attempt to explain this temporal behavior as either originating from a relativistic off-axis jet or a kilonova-like outflow. In either scenario, there is some ambiguity regarding how much energy is transported in the nonthermal electrons versus the magnetic field of the emission region. Combining the Very Large Array (radio) and Chandra (X-ray) measurements with observations in the GeV–TeV domain can help break this ambiguity, almost independently of the assumed origin of the emission. Here we report for the first time on deep H.E.S.S. observations of GW170817/GRB 170817A between 124 and 272 days after the BNS merger with the full H.E.S.S. array of telescopes, as well as on an updated analysis of the prompt (<5 days) observations with the upgraded H.E.S.S. phase-I telescopes. We discuss implications of the H.E.S.S. measurement for the magnetic field in the context of different source scenarios.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Probing the Magnetic Field in the GW170817 Outflow Using H.E.S.S. Observations
- Date Crossref
- 01/05/2020
- Éditeur
- American Astronomical Society
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Les institutions déclarées
Une affiliation ne permet pas de déduire la nationalité d’un auteur.
Les sujets associés
Gamma-ray bursts and supernovaeAstrophysics and Cosmic PhenomenaIonosphere and magnetosphere dynamics