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The host galaxies of gamma-ray bursts. II. A mass-metallicity relation for long-duration gamma-ray burst host galaxies

Levesque, E M; Kewley, Lisa; Berger, Edo; Zahid, H J

Description

We present a statistically robust mass-metallicity relation for long-duration gamma-ray burst (LGRB) host galaxies at z < 1. By comparing the LGRB host mass-metallicity relation to samples representative of the general starforming galaxy population, we conclude that LGRBs occur in host galaxies with lower metallicities than the general population, and that this trend extends to z ∼ 1, with an average offset of -0.42 ± 0.18 from the M-Z relation for star-forming galaxies. Our sample in this work...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
URI: http://hdl.handle.net/1885/79536
Source: Astronomical Journal
DOI: 10.1088/0004-6256/140/5/1557

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