Tunnicliffe, R. L. and Levan, Andrew J. (2011) GRB 100816A and the nature of intermediate duration gamma-ray bursts. Proceedings of the International Astronomical Union, Volume 7 (Supplement 279). pp. 415-416. doi:10.1017/S1743921312013610

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Abstract

Gamma-ray bursts are normally split into two classes, primarily determined by their observed duration, so called long (> 2s) and short (< 2s) GRBs. There have been many claims of a third duration class, with emission lasting for intermediate periods between 2 - 5s, although the reality of this class remains controversial. Here, we investigate this further utilising the 2.9s duration, spectrally hard GRB 100816A. This burst lies well offset from its host galaxy, has no evidence for an associated supernova (albeit to only moderately constraining limits), and has properties which appear to be genuinely intermediate between long- and short- population bursts. We extend this analysis by comparing the physical locations of a population of intermediate duration GRBs with those of short-GRBs and long-GRBs, concluding that the intermediate sample is indistinguishable from the long-GRB population, whose locations are very different from other transients.

Item Type:	Journal Article
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Proceedings of the International Astronomical Union
Publisher:	Cambridge University Press
ISSN:	1743-9213
Official Date:	2011
Dates:	Date Event 2011 Published
Volume:	Volume 7
Number:	Supplement 279
Page Range:	pp. 415-416
DOI:	10.1017/S1743921312013610
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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