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Article: Limits on the Galactic model of gamma-ray bursts

TitleLimits on the Galactic model of gamma-ray bursts
Authors
KeywordsGamma-rays: bursts
Stars: neutron
Issue Date1997
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/MNR
Citation
Monthly Notices Of The Royal Astronomical Society, 1997, v. 289 n. 3, p. 681-684 How to Cite?
AbstractThe Burst and Transient Source Experiment (BATSE) has shown that the sky distribution of gamma-ray bursts (GRBs) is remarkably isotropic but non-uniform, which implies that the observed bursts may occur either in an extended galactic halo or at cosmological distances. For the Galactic origin, Hartmann & Narayan have argued that the rotational energy of neutron stars is insufficient by orders of magnitude to provide the observed burst rate. Here we have calculated the period distribution of dead pulsars and found that the rotational energy of neutron stars may indeed be insufficient to account for the total observed energy of the bursts, because only a small fraction (∼IP/I) of rotational energy can be converted into gamma-rays if GRBs are produced by glitches. Furthermore, it is difficult to establish high-velocity neutron stars as a subclass of observed gamma-ray bursts since the observed burst rate is small, ∼ 10 yr-1. © 1997 RAS.
Persistent Identifierhttp://hdl.handle.net/10722/80882
ISSN
2015 Impact Factor: 4.952
2015 SCImago Journal Rankings: 2.806
References

 

DC FieldValueLanguage
dc.contributor.authorWei, DMen_HK
dc.contributor.authorCheng, KSen_HK
dc.date.accessioned2010-09-06T08:11:18Z-
dc.date.available2010-09-06T08:11:18Z-
dc.date.issued1997en_HK
dc.identifier.citationMonthly Notices Of The Royal Astronomical Society, 1997, v. 289 n. 3, p. 681-684en_HK
dc.identifier.issn0035-8711en_HK
dc.identifier.urihttp://hdl.handle.net/10722/80882-
dc.description.abstractThe Burst and Transient Source Experiment (BATSE) has shown that the sky distribution of gamma-ray bursts (GRBs) is remarkably isotropic but non-uniform, which implies that the observed bursts may occur either in an extended galactic halo or at cosmological distances. For the Galactic origin, Hartmann & Narayan have argued that the rotational energy of neutron stars is insufficient by orders of magnitude to provide the observed burst rate. Here we have calculated the period distribution of dead pulsars and found that the rotational energy of neutron stars may indeed be insufficient to account for the total observed energy of the bursts, because only a small fraction (∼IP/I) of rotational energy can be converted into gamma-rays if GRBs are produced by glitches. Furthermore, it is difficult to establish high-velocity neutron stars as a subclass of observed gamma-ray bursts since the observed burst rate is small, ∼ 10 yr-1. © 1997 RAS.en_HK
dc.languageengen_HK
dc.publisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/MNRen_HK
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen_HK
dc.subjectGamma-rays: burstsen_HK
dc.subjectStars: neutronen_HK
dc.titleLimits on the Galactic model of gamma-ray burstsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0035-8711&volume=289&spage=681&epage=684&date=1997&atitle=Limits+on+the+Galactic+Model+of+Gamma-Ray+Burstsen_HK
dc.identifier.emailCheng, KS: hrspksc@hkucc.hku.hken_HK
dc.identifier.authorityCheng, KS=rp00675en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-18444396922en_HK
dc.identifier.hkuros28440en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-18444396922&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume289en_HK
dc.identifier.issue3en_HK
dc.identifier.spage681en_HK
dc.identifier.epage684en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridWei, DM=7202908906en_HK
dc.identifier.scopusauthoridCheng, KS=9745798500en_HK

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