MAGIC detection of GRB 201216C at z = 1.1
Abe H; Abe S; Acciari V; Agudo I; Aniello T; Ansoldi S; Antonelli L; Arbet Engels A; Arcaro C; Artero M; Asano K; Baack D; Babić A; Baquero A; Almeida U; Barrio J; Batković I; Baxter J; Becerra González J; Bednarek W; Bernardini E; Bernete J; Berti A; Besenrieder J; Bigongiari C; Biland A; Blanch O; Bonnoli G; Bošnjak Ž; Burelli I; Busetto G; Campoy-Ordaz A; Carosi A; Carosi R; Carretero-Castrillo M; Castro-Tirado A; Ceribella G; Chai Y; Cifuentes A; Cikota S; Colombo E; Contreras J; Cortina J; Covino S; D’Amico G; D’Elia V; Da Vela P; Dazzi F; De Angelis A; De Lotto B; Del Popolo A; Delfino M; Delgado J; Delgado Mendez C; Depaoli D; Di Pierro F; Di Venere L; Dominis Prester D; Donini A; Dorner D; Doro M; Elsaesser D; Emery G; Escudero J; Fariña L; Fattorini A; Foffano L; Font L; Fukami S; Fukazawa Y; García López R; Garczarczyk M; Gasparyan S; Gaug M; Giesbrecht Paiva J; Giglietto N; Giordano F; Gliwny P; Godinović N; Grau R; Green D; Green J; Hadasch D; Hahn A; Hassan T; Heckmann L; Herrera J; Hrupec D; Hütten M; Imazawa R; Inada T; Iotov R; Ishio K; Jiménez Martínez I; Jormanainen J; Kerszberg D; Kluge G; Kobayashi Y; Kouch P; Kubo H; Kushida J; Láinez Lezáun M; Lamastra A; Leone F; Lindfors E; Linhoff L; Lombardi S; Longo F; López-Coto R; López-Moya M; López-Oramas A; Loporchio S; Lorini A; Lyard E; Oliveira Fraga B; Majumdar P; Makariev M; Maneva G; Mang N; Manganaro M; Mangano S; Mannheim K; Mariotti M; Martínez M; Mas-Aguilar A; Mazin D; Menchiari S; Mender S; Mićanović S; Miceli D; Miener T; Miranda J; Mirzoyan R; Molero González M; Molina E; Mondal H; Moralejo A; Morcuende D; Nanci C; Nava L; Neustroev V; Nievas Rosillo M; Nigro C; Nikolić L; Nilsson K; Nishijima K; Njoh Ekoume T; Noda K; Nozaki S; Ohtani Y; Okumura A; Otero-Santos J; Paiano S; Palatiello M; Paneque D; Paoletti R; Paredes J; Pavletić L; Pavlović D; Persic M; Pihet M; Pirola G; Podobnik F; Prada Moroni P; Prandini E; Principe G; Priyadarshi C; Rhode W; Ribó M; Rico J; Righi C; Sahakyan N; Saito T; Satalecka K; Saturni F; Schleicher B; Schmidt K; Schmuckermaier F; Schubert J; Schweizer T; Sciaccaluga A; Sitarek J; Sliusar V; Sobczynska D; Spolon A; Stamerra A; Strišković J; Strom D; Strzys M; Suda Y; Suutarinen S; Tajima H; Takahashi M; Takeishi R; Tavecchio F; Temnikov P; Terauchi K; Terzić T; Teshima M; Tosti L; Truzzi S; Tutone A; Ubach S; Scherpenberg J; Vazquez Acosta M; Ventura S; Verguilov V; Viale I; Vigorito C; Vitale V; Vovk I; Walter R; Will M; Yamamoto T; Gomboc A; Jordana-Mitjans N; Melandri A; Mundell C; Shrestha M; Steele I
https://urn.fi/URN:NBN:fi-fe2025082787476
Tiivistelmä
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 70 GeV of GRB 201216C is modelled together with multiwavelength data within a synchrotron and synchrotron self-Compton (SSC) scenario. We find that SSC can explain the broad-band 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 favours 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. © 2023 The Author(s).
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