PoS - Proceedings of Science
Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - Session Gamma-Ray Astronomy. GA-galactic
Ashra Optical Transient Observation
H. Oshima
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Pre-published on: August 16, 2017
Published on: August 03, 2018
Ashra (All-sky Survey High Resolution Air-shower detector) is a project to build an unconventional optical telescope complex that images very wide field of view, covering 77% of the sky. In regard to the plateau region of Gamma-ray burst (GRB) afterglow, various models for explanation exist, however its origin is still not sure. There is a model that can explain this region by the precursor component earlier than the start time of GRB. We analyzed observation data of Ashra-1 to study optical flash of precursor.
DOI: https://doi.org/10.22323/1.301.0678
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