Accès ouvert déclaré
2023
conference-paper
The Eta Carinae 2020 periastron passage as seen by H.E.S.S.
S. Steinmassl, V. Marandon, Quentin Rémy, J. A. Hinton, F. Aharonian, Faical Ait-Benkhali, Attila Alkan, J. Aschersleben, Halim Ashkar, Michael Backes, Ali Baktash, V. Barbosa Martins, A. Barnacka, Joleen Barnard, Rowan William Batzofin, Y. Becherini, Geoffrey Beck, D. Berge, Konrad Bernloehr, Baiyang Bi, Markus Boettcher, C. Boisson, J. Bolmont, Mathieu Bony, Makarim Bouyahiaoui, Federica Bradascio, M. Breuhaus, Robert Brose, A. M. Brown, F. Brun, Benedetta Bruno, T. Bulik, C. Burger-Scheidlin, Thomas Bylund, F. Cangemi, Sami Caroff, S. Casanova, Rahul Cecil, Jelena Ćelić, M. Cerruti, Pauline Chambéry, T. Chand, S. Chandra, A. Chen, James O. Chibueze, Ogochukwu Chibueze, Tiffany Collins, Garret Cotter, Pierre Cristofari, J. Damascene Mbarubucyeye, I. D. Davids, J. Davies, Laenita de Jonge, Justine Devin, A. Djannati-Ataı̈, Julia Isabel Djuvsland, Anton Dmytriiev, Victor Doroshenko, Lenté Dreyer, Louis Du Plessis, K. Egberts, S. Einecke, Jean-Pierre ERNENWEIN, S. Fegan, Kirsty Feijen, Gaëtan Fichet de Clairfontaine, G. Fontaine, Lott Frans, Matthias Fuessling, S. Funk, S. Gabici, Yves Gallant, S. Ghafourizadeh, G. Giavitto, Luca Giunti, D. Glawion, J. F. Glicenstein, Jonas Glombitza, Pranjupriya Goswami, G. Grolleron, Marie-Hélène Grondin, Lucia Haerer, Sumari Hattingh, Maria Haupt, G. Hermann, Werner Hofmann, T. L. Holch, M. Holler, D. Horns, Zhi-Qiu Huang, Annanay Jaitly, M. Jamrozy, F. Jankowsky, Armelle Jardin-Blicq, Vikas Joshi, Ira Jung-Richardt, E. Kasai, K. Katarzyński, Hiiko Katjaita, Rukaiya Khatoon, B. Khélifi, S. Klepser, Nu. Komin, Ruslan Konno, K. Kosack, D. Kostunin, A. Kundu, G. Lamanna, Rodrigo Guedes Lang, Sebastien Le Stum, Valentin Lefranc, Franziska Leitl, Anne Lemière, M. Lemoine‐Goumard, J.-P. Lenain, Fabian Leuschner, Anna Luashvili, Iryna Lypova, Jonathan Mackey, D. Malyshev, Alexandre Marcowith, Peter David Marinos, Guillem Marti'i-Devesa, R. Marx, G. Maurin, Abhay Mehta, P. J. Meintjes, M. Meyer, Alison Mitchell, R. Moderski, L. Mohrmann, Alessandro Montanari, E. Moulin, T. Murach, Kaori Nakashima, M. de Naurois, Hambeleleni Ndiyavala, J. Niemiec, Angel Noel, P. T. O’Brien, S. Ohm, Laura Olivera-Nieto, E. de Oña Wilhelmi, M. Ostrowski, Enzo Oukacha, Sebastian Panny, Michael Panter, Daniel R. Parsons, U. Pensec, Giada Peron, S. Pita, Vincent Poireau, Д. А. Прохоров, Heike Prokoph, G. Puehlhofer, M. Punch, A. Quirrenbach, Maxime Regeard, Patrick Reichherzer, A. Reimer, O. Reimer, Igor Adriano de Oliveira Reis, Helena X. Ren, M. Renaud, Brian Reville, Frank Rieger, Gerrit Roellinghoff, E. Rol, Gavin Rowell, B. Rudak, Hector Rueda Ricarte, E. Ruiz-Velasco, Karim Sabri, V. Sahakian, Simon Sailer, Heiko Salzmann, D. A. Sánchez, A. Santangelo, M. Sasaki, Johannes Schaefer, H. M. Schutte, Mohanraj Senniappan, J. N. S. Shapopi, Sigrid Shilunga, Kleopas Shiningayamwe, Hélène Sol, Hugh Spackman, Andreas Specovius, S. Spencer, Ł. Stawarz, Riaan Steenkamp, Christian Stegmann, Constantin Steppa, Katrin Streil, I. Sushch, Hiromasa Suzuki, Tadayuki Takahashi, Takaaki Tanaka, T. Tavernier, Andrew M. Taylor, R. Terrier, Adnaan Thakur, Hannes Thiersen, Charles Thorpe-Morgan, Martin Tluczykont, M. Tsirou, Naomi Tsuji, Richard J. Tuffs, Y. Uchiyama, Marion Ullmo, Tim Unbehaun, Pieter van der Merwe, C. van Eldik, B. van Soelen, George Vasileiadis, M. Vecchi, J. Veh, C. Venter, Jacco Vink, H. J. Voêlk, Naomi Vogel, T. Wach, S. J. Wagner, Felix Werner, R. White, A. Wierzcholska, Yu Wun Wong, Hend Mahmoud Yassin, M. Zacharias, D. Zargaryan, A. A. Zdziarski, Andreas Zech, Sylvia Zhu, Andreas Zmija, Samuël Zouari, Natalia Żywucka
1Citations signalées, ce qui n’est pas une note de qualité
5Institutions déclarées
2Pays d’affiliation déclarés
Rattachement africain : fr, de.
Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
The binary system Eta Carinae is a unique laboratory to study particle acceleration up to very high energies (VHE) under a wide range of conditions. Particles are thought to be accelerated at shocks forming in the wind collision region. Eta Carinae has been firmly established as a source of high energy gamma-rays in Fermi-LAT data over several orbits. With its highly eccentric orbit lasting 5.5 years, the periastron passage of the two stars is extremely close. This provides an opportunity to constrain the acceleration and absorption mechanisms of the system. Eta Carinae was detected above 200 GeV by the H.E.S.S. telescopes (H.E.S.S. Collaboration, 2020) based on data before and after the 2014 periastron. Unfortunately the 2014 periastron itself could not be observed by H.E.S.S. due to visibility constraints. Hence the 2020 periastron was the first periastron passage visible for the full 5 telescope H.E.S.S. array and was therefore monitored with an extensive observation campaign spanning the phase range from 0.97 to 1.05. We report the detection of a VHE signal from Eta Carinae during the 2020 periastron and describe its spectral properties together with simultaneous Fermi-LAT data. Together with previous and follow up observations, for the first time a VHE light curve spanning a full orbit is presented.
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
- The Eta Carinae 2020 periastron passage as seen by H.E.S.S.
- Date Crossref
- 18/08/2023
- Éditeur
- Sissa Medialab
- Type
- proceedings-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
Astrophysics and Cosmic PhenomenaGamma-ray bursts and supernovaeAstrophysical Phenomena and Observations