Long gamma-ray bursts and core-collapse supernovae have different environments

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Fruchter, AS, Levan, AJ, Strolger, L, Vreeswijk, PM, Thorsett, SE, Bersier, D, Burud, I, Castro Ceron, JM, Castro-Tirado, AJ, Conselice, C, Dahlen, T, Ferguson, HC, Fynbo, JPU, Garnavich, PM, Gibbons, RA, Gorosabel, J, Gull, TR, Hjorth, J, Holland, ST, Kouveliotou, C et al (2006) Long gamma-ray bursts and core-collapse supernovae have different environments. Nature, 441. pp. 463-468. ISSN 0028-0836

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Publisher URL: http://dx.doi.org/10.1038/nature04787

Abstract

When massive stars exhaust their fuel, they collapse and often produce the extraordinarily bright explosions known as core-collapse supernovae. On occasion, this stellar collapse also powers an even more brilliant relativistic explosion known as a long-duration g-ray burst. One would then expect that these long g-ray bursts and core-collapse supernovae should be found in similar galactic environments. Here we show that this expectation is wrong. We find that the g-ray bursts are far more concentrated in the very brightest regions of their host galaxies than are the core-collapse supernovae. Furthermore, the host galaxies of the long g-ray bursts are significantly fainter and more irregular than the hosts of the core-collapse supernovae. Together these results suggest that long-duration g-ray bursts are associated with the most extremely massive stars and may be restricted to galaxies of limited chemical evolution. Our results directly imply that long g-ray bursts are relatively rare in galaxies such as our own Milky Way.

Item Type:	Article
Uncontrolled Keywords:	MD Multidisciplinary
Subjects:	Q Science > QB Astronomy Q Science > QC Physics Q Science > QD Chemistry
Divisions:	Astrophysics Research Institute
Publisher:	Nature Publishing Group
Related URLs:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000237778900040&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=7f77ca1697db64ccb27a8011c7ced90d
Date of acceptance:	5 April 2006
Date of first compliant Open Access:	28 November 2016
Date Deposited:	28 Nov 2016 11:53
Last Modified:	20 Apr 2022 09:07
DOI or ID number:	10.1038/nature04787
URI:	https://ljmu-9.eprints-hosting.org/id/eprint/4882

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