Progenitor models of the electromagnetic transient associated with the short gamma ray burst 130603B

Kenta Hotokezaka, Koutarou Kyutoku, Masaomi Tanaka, Kenta Kiuchi, Yuichiro Sekiguchi, Masaru Shibata, Shinya Wanajo

研究成果: Article査読

97 被引用数 (Scopus)

抄録

An electromagnetic transient powered by the radioactive decay of r-process elements, a so-called kilonova/macronova, is one of the possible observable consequences of compact binary mergers including at least one neutron star. Recent observations strongly suggest the discovery of the first electromagnetic transient, which is associated with the short gamma ray burst 130603B. We explore a possible progenitor of this event by combining numerical-relativity simulations and radiative transfer simulations of the dynamical ejecta of binary neutron star and black hole-neutron star mergers. We show that the ejecta models within a realistic parameter range consistently reproduce the observed near-infrared excess. We also show that the soft equation-of-state models for binary neutron star mergers and the stiff equation-of-state models for black hole-neutron star mergers are suitable for reproducing the observed luminosity.

本文言語English
論文番号L16
ジャーナルAstrophysical Journal Letters
778
1
DOI
出版ステータスPublished - 2013 11 20
外部発表はい

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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