Short-Duration Gamma-Ray Bursts

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Short-Duration Gamma-Ray Bursts

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Title: Short-Duration Gamma-Ray Bursts
Author: Berger, Edo
Citation: Berger, Edo. 2014. Short-Duration Gamma-Ray Bursts. Annual Review of Astronomy and Astrophysics 52, no. 1: 43–105. doi:10.1146/annurev-astro-081913-035926.
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Abstract: Gamma-ray bursts (GRBs) display a bimodal duration distribution, with a separation between the shortand long-duration bursts at about 2 sec. The progenitors of long GRBs have been identified as massive stars based on their association with Type Ic core-collapse supernovae, their exclusive location in starforming galaxies, and their strong correlation with bright ultraviolet regions within their host galaxies. Short GRBs have long been suspected on theoretical grounds to arise from compact object binary mergers (NS-NS or NS-BH). The discovery of short GRB afterglows in 2005, provided the first insight into their energy scale and environments, established a cosmological origin, a mix of host galaxy types, and an absence of associated supernovae. In this review I summarize nearly a decade of short GRB afterglow and host galaxy observations, and use this information to shed light on the nature and properties of their progenitors, the energy scale and collimation of the relativistic outflow, and the properties of the circumburst environments. The preponderance of the evidence points to compact object binary progenitors, although some open questions remain. Based on this association, observations of short GRBs and their afterglows can shed light on the on- and off-axis electromagnetic counterparts of gravitational wave sources from the Advanced LIGO/Virgo experiments.
Published Version: doi:10.1146/annurev-astro-081913-035926
Other Sources: https://arxiv.org/abs/1311.2603
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:30496618
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