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dc.contributor.authorChapman, R.
dc.contributor.authorPriddey, R.
dc.contributor.authorTanvir, N.
dc.date.accessioned2009-09-29T10:57:44Z
dc.date.available2009-09-29T10:57:44Z
dc.date.issued2009
dc.identifier.citationChapman , R , Priddey , R & Tanvir , N 2009 , ' Short gamma-ray bursts from SGR giant flares and neutron star mergers: two populations are better than one ' , Monthly Notices of the Royal Astronomical Society , vol. 395 , no. 3 , pp. 1515-1522 . https://doi.org/10.1111/j.1365-2966.2009.14610.x
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 85488
dc.identifier.otherPURE UUID: 8e2d86d1-933d-4f5b-a58f-fe40e77ecf65
dc.identifier.otherdspace: 2299/3893
dc.identifier.otherScopus: 65649129665
dc.identifier.urihttp://hdl.handle.net/2299/3893
dc.description‘The definitive version is available at www.blackwell-synergy.com.’ Copyright Blackwell Publishing. DOI: 10.1111/j.1365-2966.2009.14610.x
dc.description.abstractThere is increasing evidence of a local population of short duration gamma-ray bursts (sGRB), but it remains to be seen whether this is a separate population to higher redshift bursts. Here we choose plausible luminosity functions (LFs) for both neutron star binary mergers and giant flares from soft gamma repeaters (SGR), and combined with theoretical and observed Galactic intrinsic rates we examine whether a single progenitor model can reproduce both the overall Burst and Transient Source Experiment (BATSE) sGRB number counts and a local population, or whether a dual progenitor population is required. Though there are large uncertainties in the intrinsic rates, we find that at least a bimodal LF consisting of lower and higher luminosity populations is required to reproduce both the overall BATSE sGRB number counts and a local burst distribution. Furthermore, the best-fitting parameters of the lower luminosity population agree well with the known properties of SGR giant flares, and the predicted numbers are sufficient to account for previous estimates of the local sGRB population.en
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rights/dk/atira/pure/core/openaccesspermission/open
dc.titleShort gamma-ray bursts from SGR giant flares and neutron star mergers: two populations are better than oneen
dc.contributor.institutionSchool of Computer Science
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Computer Science
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1365-2966.2009.14610.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstyperestrictedAccess


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