IKI GRB-FuN: observations of GRBs with small-aperture telescopes

Gamma-ray bursts (GRBs) are the most energetic and mysterious events in the Universe, which are observed in all ranges of electromagnetic spectrum. Most valuable results about physics of GRB are obtained by optical observations. GRBs are initially detected in gamma-rays with poor localization accura...

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Published in:	Anais da Academia Brasileira de Ciências Vol. 93; no. suppl 1; p. e20200883
Main Authors:	Volnova, Alina, Pozanenko, Alexei, Mazaeva, Elena, Belkin, Sergey, Molotov, Igor, Elenin, Leonid, Tungalag, Namkhai, Buckley, David
Format:	Journal Article
Language:	English
Published:	Brazil Academia Brasileira de Ciências 01-01-2021
Subjects:	gamma-ray bursts MULTIDISCIPLINARY SCIENCES optical afterglow optical observations optical transients small telescopes optical transients small telescopes optical afterglow optical observations gamma-ray bursts
Online Access:	Get full text
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Summary:	Gamma-ray bursts (GRBs) are the most energetic and mysterious events in the Universe, which are observed in all ranges of electromagnetic spectrum. Most valuable results about physics of GRB are obtained by optical observations. GRBs are initially detected in gamma-rays with poor localization accuracy, and an optical counterpart should be found. The faster the counterpart is found, the more it can give to physics. This first phase, as a rule, corresponds to an early afterglow. The next phases of the observations are multicolor photometry, polarimetry, spectroscopy, and few days later the search for a supernova or kilonova associated with the GRB, and finally, observations of the host galaxy. To manage the problem of fast optical observations, telescopes with a small aperture are suitable. They can have a large field of view, which is necessary to cover initial localizations of GRBs. The sensitivity of the telescope+detector may be sufficient to record statistically significant light curve with fine time resolution. We describe one of the networks of telescopes with a small aperture IKI-GRB FuN, and present the results of early optical observation of GRB sources, and discuss the design requirements of the optical observations for effective GRB research in the next decade.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0001-3765 1678-2690 1678-2690
DOI:	10.1590/0001-3765202120200883