What can we learn from GRBs?

We review our recent results on the classification of long and short gamma-ray bursts (GRBs) in different subclasses. We provide observational evidences for the binary nature of GRB progenitors. For long bursts the induced gravitational collapse (IGC) paradigm proposes as progenitor a tight binary s...

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Published inEPJ Web of Conferences Vol. 168; p. 1015
Main Authors Muccino, Marco, Ruffini, Remo, Aimuratov, Yerlan, Becerra, Laura M., Bianco, Carlo L., Karlica, Mile, Kovacevic, Milos, Melon Fuksman, Julio D., Moradi, Rahim, Penacchioni, Ana V., Pisani, Giovanni B., Primorac, Daria, Rueda, Jorge A., Shakeri, Soroush, Vereshchagin, Gregory V., Xue, She-Sheng, Wang, Yu
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2018
Subjects
Binary stars
Companion stars
Deposition
Gamma ray bursts
Gamma rays
Gravitational collapse
White dwarf stars
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Summary:We review our recent results on the classification of long and short gamma-ray bursts (GRBs) in different subclasses. We provide observational evidences for the binary nature of GRB progenitors. For long bursts the induced gravitational collapse (IGC) paradigm proposes as progenitor a tight binary system composed of a carbon-oxygen core (CO core ) and a neutron star (NS) companion; the supernova (SN) explosion of the CO core triggers a hypercritical accretion process onto the companion NS. For short bursts a NS–NS merger is traditionally adopted as the progenitor. We also indicate additional sub-classes originating from different progenitors: (CO core )–black hole (BH), BH–NS, and white dwarf–NS binaries. We also show how the outcomes of the further evolution of some of these sub-classes may become the progenitor systems of other sub-classes.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201816801015