Gamma-ray bursts associating with gravitational waves from compact binary mergers

After 35 years of experimental research, we are rapidly approaching the point at which gravitational waves (GWs) from astrophysical sources may be directly detected by the long-baseline detectors LIGO (USA), GEO 600 (Germany/UK), VIRGO (Italy/France) and TAMA 300 (Japan), which are now in or coming into operation. A promising source of GWs is the coalescence of compact binary systems, events which are now believed to be the origin of short gamma-ray bursts (GRBs). In this paper, a brief review of the state of the art in detector development and exploitation will be given, with particular relevance to a search for signals associated with GRBs, and plans for the future will be discussed.

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Gamma-ray Bursts Progress and Problems

Proceedings of the International Astronomical Union ◽

10.1017/s1743921317001788 ◽

2016 ◽

Vol 12 (S324) ◽

pp. 49-53

Author(s):

N. R. Tanvir

Keyword(s):

Galaxy Evolution ◽

Gamma Ray ◽

Gamma Ray Bursts ◽

Compact Binary ◽

Distant Galaxies ◽

Long Duration ◽

Massive Neutron Star ◽

Binary Mergers ◽

The Impact ◽

The Universe

AbstractOur understanding of gamma-ray bursts (GRBs) has come a long way in the past fifty years since their first detection. We now know that GRBs arise in distant galaxies and that there are at least two distinct sub-classes, the long-duration class being produced by some rare massive star core collapse and the short-duration class likely by compact binary mergers involved neutron stars. In both cases, the final remnant will be a stellar-mass black-hole or a massive neutron star. The bursts themselves are associated with ultra-relativistic jetted outflows created by these events, and their afterglows by the impact of these outflows on the surrounding circumburst material. Increasingly GRBs are also being used as probes of the universe, both for understanding galaxy evolution back to the era of reionization, and for the physics of gravitational wave sources. However, many aspects of GRBs remain poorly understood, some pointers to which are given here.

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Short gamma-ray bursts near and far

Philosophical Transactions of The Royal Society A Mathematical Physical and Engineering Sciences ◽

10.1098/rsta.2006.1981 ◽

2007 ◽

Vol 365 (1854) ◽

pp. 1315-1321 ◽

Cited By ~ 2

Author(s):

Andrew J Levan

Keyword(s):

Gamma Ray ◽

Gamma Ray Bursts ◽

Compact Binary ◽

Binary Mergers ◽

Short Grbs

Progress in understanding the nature of short gamma-ray bursts (GRBs) has been rapid since the discovery of the first afterglows in mid-2005. The emerging picture appears to be of short GRBs, which originate at moderate redshift (a few tenths) and appear in galaxies of all ages. This discovery has been used to argue for their origin in compact binary mergers. However, this population does not describe all short bursts. Here, I will present results of observations of several short GRBs, which challenge the conclusions drawn from the early observations. The observations show that some short GRBs originate in the very low redshift Universe (below 100 Mpc), while some may also lie at redshifts comparable with the long GRBs (i.e. z >2). I will discuss the properties of these bursts and the implications they have for the progenitors of short GRBs.

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