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MAGIC detection of GRB 201216C at $z=1.1$
- Source :
- Monthly Notices of the Royal Astronomical Society, Volume 527, Issue 3, January 2024, Pages 5856-5867
- Publication Year :
- 2023
-
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 \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.<br />Comment: 13 pages, 6 figures, 2 tables. Accepted for publication in Monthly Notices of the Royal Astronomical Society
- Subjects :
- Astrophysics - High Energy Astrophysical Phenomena
Subjects
Details
- Database :
- arXiv
- Journal :
- Monthly Notices of the Royal Astronomical Society, Volume 527, Issue 3, January 2024, Pages 5856-5867
- Publication Type :
- Report
- Accession number :
- edsarx.2310.06473
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1093/mnras/stad2958