MAGIC detection of GRB 201216C at z = 1.1

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 an...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2024-01, Vol.527 (3), p.5856-5867
Hauptverfasser:	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
Format:	Artikel
Sprache:	eng
Schlagworte:	Afterglows Electromagnetic radiation Emission Energy bands Explosives detection Gamma ray bursts High energy astronomy Telescopes
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Zusammenfassung:	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.
ISSN:	0035-8711 1365-2966
DOI:	10.1093/mnras/stad2958