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Acciari, V A; Agudo, I; Aniello, T; Ansoldi, S; Arcaro, C; Artero, M; Asano, K; Baack, D; Baquero, A; Barrio, J A; González, J Becerra; Bednarek, W; Bernete, J; Berti, A; Besenrieder, J; Bigongiari, C; Biland, A; Carosi, A; Ceribella, G; Chai, Y; Cifuentes, A; Colombo, E; Cortina, J; D’Amico, G; Da Vela, P; Dazzi, F; De Angelis, A; Pierro, F Di; Prester, D Dominis; Dorner, D; Doro, M; Emery, G; Fattorini, A; Foffano, L; Font, L; Fukazawa, Y; López, R J García; Gaug, M; Paiva, J G Giesbrecht; Giglietto, N; Grau, R; Green, D; Hadasch, D; Heckmann, L; Herrera, J; Inada, T; Ishio, K; Kouch, P M; Kubo, H; Lezáun, M Láinez; Leone, F; Linhoff, L; Longo, F; Lyard, E; Majumdar, P; Makariev, M; Mangano, S; Martínez, M; Mas-Aguilar, A; Miceli, D; Miener, T; González, M Molero; Morcuende, D; Nava, L; Nilsson, K; Nishijima, K; Ekoume, T Njoh; Noda, K; Ohtani, Y; Otero-Santos, J; Palatiello, M; Paneque, D; Paoletti, R; Pavletić, L; Pihet, M; Pirola, G; Podobnik, F; Moroni, P G Prada; Sahakyan, N; Satalecka, K; Schmidt, K; Schmuckermaier, F; Sciaccaluga, A; Sitarek, J; Sliusar, V; Stamerra, A; Strišković, J; Tajima, H; Takeishi, R; Tavecchio, F; Temnikov, P; Terauchi, K; Terzić, T; Truzzi, S; Tutone, A; van Scherpenberg, J; Vigorito, C F; Walter, R; Gomboc, A; Shrestha, M
Monthly notices of the Royal Astronomical Society, 01/2024, Volume: 527, Issue: 3Journal Article
ABSTRACT 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.
