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CONSTRAINTS ON THE VERY HIGH ENERGY GAMMA-RAY EMISSION WITH HAWC

  • HAWC Collaboration
  • Universidad Nacional Autónoma de México
  • University of Utah
  • Los Alamos National Laboratory
  • Universidad Autonoma de Chiapas
  • Universidad Michoacana de San Nicolas de Hidalgo
  • Pennsylvania State University
  • Michigan Technological University
  • Polish Academy of Sciences
  • NASA Goddard Space Flight Center
  • University of Rochester
  • University of Maryland, College Park
  • Instituto Nacional de Astrofisica Optica y Electronica
  • Instituto Politécnico Nacional
  • Benemerita Universidad Autonoma de Puebla
  • Universidad de Guadalajara
  • University of Wisconsin-Madison
  • Catholic University of America
  • National Aeronautics and Space Administration
  • Instituto Tecnologico de Estudios Superiores de Monterrey
  • University of Seoul

Research output: Contribution to journalConference articlepeer-review

Abstract

Gamma-ray bursts (GRBs) are among the most luminous sources in the universe. The nature of their emission at TeV energies is one of the most relevant open issues related to these events. The temporal and spectral features inferred from the early and late emissions usually known as prompt and afterglow, respectively, can be interpreted within the context of the fireball model. The synchrotron self-Compton process is expected during the afterglow phase. We explain how the theoretical SSC light curves can be compared with hypothetical upper limit located at z = 0.3. We show the allowed parameter space of the microphysical parameters and density of the circumburst medium. The most restrictive results are obtained when the SSC process lies in the fast cooling regime.

Original languageEnglish
Article number921
JournalProceedings of Science
Volume395
StatePublished - 18 Mar 2022
Externally publishedYes
Event37th International Cosmic Ray Conference, ICRC 2021 - Virtual, Berlin, Germany
Duration: 12 Jul 202123 Jul 2021

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