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arxiv: 2310.06473 · v1 · pith:ZXOUURGEnew · submitted 2023-10-10 · 🌌 astro-ph.HE

MAGIC detection of GRB 201216C at z=1.1

H. Abe , S. Abe , V. A. Acciari , I. Agudo , T. Aniello , S. Ansoldi , L. A. Antonelli , A. Arbet Engels
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C. Arcaro M. Artero K. Asano D. Baack A. Babi\'c A. Baquero U. Barres de Almeida J. A. Barrio I. Batkovi\'c J. Baxter J. Becerra Gonz\'alez W. Bednarek E. Bernardini J. Bernete A. Berti J. Besenrieder C. Bigongiari A. Biland O. Blanch G. Bonnoli \v{Z}. Bo\v{s}njak I. Burelli G. Busetto A. Campoy-Ordaz A. Carosi R. Carosi M. Carretero-Castrillo A. J. Castro-Tirado G. Ceribella Y. Chai A. Cifuentes S. Cikota E. Colombo J. L. Contreras J. Cortina S. Covino G. D'Amico V. D'Elia P. Da Vela F. Dazzi A. De Angelis B. De Lotto A. Del Popolo M. Delfino J. Delgado C. Delgado Mendez D. Depaoli F. Di Pierro L. Di Venere D. Dominis Prester A. Donini D. Dorner M. Doro D. Elsaesser G. Emery J. Escudero L. Fari\~na A. Fattorini L. Foffano L. Font S. Fukami Y. Fukazawa R. J. Garc\'ia L\'opez M. Garczarczyk S. Gasparyan M. Gaug J. G. Giesbrecht Paiva N. Giglietto F. Giordano P. Gliwny N. Godinovi\'c R. Grau D. Green J. G. Green D. Hadasch A. Hahn T. Hassan L. Heckmann J. Herrera D. Hrupec M. H\"utten R. Imazawa T. Inada R. Iotov K. Ishio I. Jim\'enez Mart\'inez J. Jormanainen D. Kerszberg G. W. Kluge Y. Kobayashi P. M. Kouch H. Kubo J. Kushida M. L\'ainez Lez\'aun A. Lamastra F. Leone E. Lindfors L. Linhoff S. Lombardi F. Longo R. L\'opez-Coto M. L\'opez-Moya A. L\'opez-Oramas S. Loporchio A. Lorini E. Lyard B. Machado de Oliveira Fraga P. Majumdar M. Makariev G. Maneva N. Mang M. Manganaro S. Mangano K. Mannheim M. Mariotti M. Mart\'inez A. Mas-Aguilar D. Mazin S. Menchiari S. Mender S. Mi\'canovi\'c D. Miceli T. Miener J. M. Miranda R. Mirzoyan M. Molero Gonz\'alez E. Molina H. A. Mondal A. Moralejo D. Morcuende C. Nanci L. Nava V. Neustroev M. Nievas Rosillo C. Nigro L. Nikoli\'c K. Nilsson K. Nishijima T. Njoh Ekoume K. Noda S. Nozaki Y. Ohtani A. Okumura J. Otero-Santos S. Paiano M. Palatiello D. Paneque R. Paoletti J. M. Paredes L. Pavleti\'c D. Pavlovi\'c M. Persic M. Pihet G. Pirola F. Podobnik P. G. Prada Moroni E. Prandini G. Principe C. Priyadarshi W. Rhode M. Rib\'o J. Rico C. Righi N. Sahakyan T. Saito K. Satalecka F. G. Saturni B. Schleicher K. Schmidt F. Schmuckermaier J. L. Schubert T. Schweizer A. Sciaccaluga J. Sitarek V. Sliusar D. Sobczynska A. Spolon A. Stamerra J. Stri\v{s}kovi\'c D. Strom M. Strzys Y. Suda S. Suutarinen H. Tajima M. Takahashi R. Takeishi F. Tavecchio P. Temnikov K. Terauchi T. Terzi\'c M. Teshima L. Tosti S. Truzzi A. Tutone S. Ubach J. van Scherpenberg M. Vazquez Acosta S. Ventura V. Verguilov I. Viale C. F. Vigorito V. Vitale I. Vovk R. Walter M. Will T. Yamamoto A. Gomboc N. Jordana-Mitjans A. Melandri C. G. Mundell M. Shrestha I. A. Steele
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keywords datadetectedgrbsdetectionemissionenergiesenergymagic
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Gamma-ray bursts (GRBs) are explosive transient events occurring at cosmological distances, releasing a large amount of energy as electromagnetic radiation over several energy bands. We report the detection of the long GRB~201216C by the MAGIC telescopes. The source is located at $z=1.1$ and thus it is the farthest one detected at very high energies. The emission above \SI{70}{\GeV} of GRB~201216C is modelled together with multi-wavelength data within a synchrotron and synchrotron-self Compton (SSC) scenario. We find that SSC can explain the broadband data well from the optical to the very-high-energy band. For the late-time radio data, a different component is needed to account for the observed emission. Differently from previous GRBs detected in the very-high-energy range, the model for GRB~201216C strongly favors a wind-like medium. The model parameters have values similar to those found in past studies of the afterglows of GRBs detected up to GeV energies.

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