Preprint PUBDB-2025-00107

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MAGIC detection of GRB 201216C at $z$ = 1.1

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2023

() [10.1093/mnras/stad2958]
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Report No.: arXiv:2310.06473

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.

Keyword(s): gamma ray: burst ; radiation: electromagnetic ; VHE ; MAGIC ; redshift ; gamma ray: emission ; Compton scattering ; GeV ; synchrotron ; optical ; astroparticle physics ; radiation mechanisms: non-thermal ; gamma-ray burst: individual: GRB 201216C ; gamma-ray bursts

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Note: 13 pages, 6 figures, 2 tables. Accepted for publication in Monthly Notices of the Royal Astronomical Society

Contributing Institute(s):
  1. CTA IKC (Z_CTAS)
Research Program(s):
  1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
Experiment(s):
  1. Cherenkov Telescope Array

Database coverage:
Medline ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; NationallizenzNationallizenz ; Published ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection
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http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article  ;  ;  ; et al
MAGIC detection of GRB 201216C at $z$ = 1.1
Monthly notices of the Royal Astronomical Society 527(3), 5856 - 5867 () [10.1093/mnras/stad2958]  GO OpenAccess  Download fulltext Files  Download fulltextFulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS


 Record created 2025-01-10, last modified 2025-07-15


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