Eichler 2008 single model for long and short burst

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Title:		A Universal Central Engine Hypothesis for Short and Long GRBs
Authors:		Eichler, David; Guetta, Dafne; Manis, Hadar
Publication:		eprint arXiv:0810.3013
Publication Date:		10/2008
Origin:		ARXIV
Keywords:		Astrophysics
Comment:		3 figures, one with two panels
Bibliographic Code:		2008arXiv0810.3013E

Abstract

It is noted that X-ray tails (XRTs) of short, hard $\gamma$-ray bursts (SHBs) are similar to X-ray flashes (XRFs). We suggest a universal central engine hypothesis, as a way of accounting for this curiosity, in which SHBs differ from long $\gamma$-ray bursts (GRBs) in prompt emission because of the differences in the host star and attendant differences in the environment they present to the compact central engine (as opposed to differences in the central engine itself). Observational constraints and implications are discussed, especially for confirming putative detections of gravitational waves from merging compact objects.

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