General relativistic binary merger simulations and short gamma-ray bursts

被引:82
作者
Faber, JA
Baumgarte, TW
Shapiro, SL
Taniguchi, K
机构
[1] Univ Illinois, Loomis Lab, Dept Phys, Urbana, IL 61801 USA
[2] Bowdoin Coll, Dept Phys & Astron, Brunswick, ME 04011 USA
[3] Univ Illinois, Dept Astron, Urbana, IL 61801 USA
[4] Univ Illinois, NCSA, Urbana, IL 61801 USA
关键词
black hole physics; gamma rays : bursts; gravitational waves; stars : neutron;
D O I
10.1086/504111
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The recent localization of some short-hard gamma-ray bursts (GRBs) in galaxies with low star formation rates has lent support to the suggestion that these events result from compact object binary mergers. We discuss how new simulations in general relativity are helping to identify the central engine of short-hard GRBs. Motivated by our latest relativistic black hole - neutron star merger calculations, we discuss a scenario in which these events may trigger short-hard GRBs and compare this model to competing relativistic models involving binary neutron star mergers and the delayed collapse of hypermassive neutron stars. Distinguishing features of these models may help guide future GRB and gravitational wave observations to identify the nature of the sources.
引用
收藏
页码:L93 / L96
页数:4
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