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A high-metallicity host environment for the long-duration GRB 020819

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Levesque, E M; Kewley, Lisa; Graham, J F; Fruchter, A S

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We present spectroscopic observations of the host galaxy and explosion site of long-duration gamma-ray burst GRB 020819. We determine a metallicity for this host environment of log(O/H) + 12 = 9.0 0.1, by far the highest metallicity determined for a long-duration gamma-ray burst (LGRB) to date. We compare the metallicity and other properties of the GRB 020819 host environment to existing observations of LGRB host galaxies and consider the implications that this metallicity has for our...[Show more]

dc.contributor.authorLevesque, E M
dc.contributor.authorKewley, Lisa
dc.contributor.authorGraham, J F
dc.contributor.authorFruchter, A S
dc.date.accessioned2015-12-13T22:43:20Z
dc.identifier.issn2041-8205
dc.identifier.urihttp://hdl.handle.net/1885/79158
dc.description.abstractWe present spectroscopic observations of the host galaxy and explosion site of long-duration gamma-ray burst GRB 020819. We determine a metallicity for this host environment of log(O/H) + 12 = 9.0 0.1, by far the highest metallicity determined for a long-duration gamma-ray burst (LGRB) to date. We compare the metallicity and other properties of the GRB 020819 host environment to existing observations of LGRB host galaxies and consider the implications that this metallicity has for our understanding of LGRB progenitor scenarios. We also consider how this unusually high metallicity may relate to the status of GRB 020819 as a "dark" burst, with no detected optical afterglow.
dc.publisherInstitute of Physics Publishing Ltd.
dc.sourceAstrophysical Journal Letters
dc.subjectKeywords: Gamma-ray burst: individual (GRB 020819)
dc.titleA high-metallicity host environment for the long-duration GRB 020819
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume712
dc.date.issued2010
local.identifier.absfor020106 - High Energy Astrophysics; Cosmic Rays
local.identifier.absfor020103 - Cosmology and Extragalactic Astronomy
local.identifier.ariespublicationf5625xPUB7666
local.type.statusPublished Version
local.contributor.affiliationLevesque, E M, University of Hawaii
local.contributor.affiliationKewley, Lisa, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationGraham, J F, Space Telescope Science Institute
local.contributor.affiliationFruchter, A S, Space Telescope Science Institute
local.description.embargo2037-12-31
local.bibliographicCitation.issue1 (Part 2)
local.bibliographicCitation.startpageL26
local.bibliographicCitation.lastpageL30
local.identifier.doi10.1088/2041-8205/712/1/L26
dc.date.updated2016-02-24T09:36:22Z
local.identifier.scopusID2-s2.0-77949305473
local.identifier.thomsonID000275418200006
CollectionsANU Research Publications

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