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Article: High-redshift gamma-ray bursts: Observational signatures of superconducting cosmic strings?

TitleHigh-redshift gamma-ray bursts: Observational signatures of superconducting cosmic strings?
Authors
KeywordsPhysics
Issue Date2010
PublisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
Citation
Physical Review Letters, 2010, v. 104 n. 24 How to Cite?
AbstractThe high-redshift gamma-ray bursts (GRBs), GRBs 080913 and 090423, challenge the conventional GRB progenitor models by their short durations, typical for short GRBs, and their high energy releases, typical for long GRBs. Meanwhile, the GRB rate inferred from high-redshift GRBs also remarkably exceeds the prediction of the collapsar model, with an ordinary star formation history. We show that all these contradictions could be eliminated naturally, if we ascribe some high-redshift GRBs to electromagnetic bursts of superconducting cosmic strings. High-redshift GRBs could become a reasonable way to test the superconducting cosmic string model because the event rate of cosmic string bursts increases rapidly with increasing redshifts, whereas the collapsar rate decreases. © 2010 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/65476
ISSN
2015 Impact Factor: 7.645
2015 SCImago Journal Rankings: 3.731
ISI Accession Number ID
Funding AgencyGrant Number
Government of Hong Kong SARHKU7011/09P
HKU7025/07P
NSFC10773004
Funding Information:

We thank M. C. Chu, K. M. Lee, Fa-Yin Wang, and K. W. Wu for useful discussions. KSC and TH are supported by the GRF Grants of the Government of Hong Kong SAR under HKU7011/09P and HKU7025/07P, respectively. Y. W. Y. is partly supported by NSFC under Grant No. 10773004.

References

 

DC FieldValueLanguage
dc.contributor.authorCheng, KSen_HK
dc.contributor.authorYu, YWen_HK
dc.contributor.authorHarko, Ten_HK
dc.date.accessioned2010-08-10T03:26:23Z-
dc.date.available2010-08-10T03:26:23Z-
dc.date.issued2010en_HK
dc.identifier.citationPhysical Review Letters, 2010, v. 104 n. 24en_HK
dc.identifier.issn0031-9007en_HK
dc.identifier.urihttp://hdl.handle.net/10722/65476-
dc.description.abstractThe high-redshift gamma-ray bursts (GRBs), GRBs 080913 and 090423, challenge the conventional GRB progenitor models by their short durations, typical for short GRBs, and their high energy releases, typical for long GRBs. Meanwhile, the GRB rate inferred from high-redshift GRBs also remarkably exceeds the prediction of the collapsar model, with an ordinary star formation history. We show that all these contradictions could be eliminated naturally, if we ascribe some high-redshift GRBs to electromagnetic bursts of superconducting cosmic strings. High-redshift GRBs could become a reasonable way to test the superconducting cosmic string model because the event rate of cosmic string bursts increases rapidly with increasing redshifts, whereas the collapsar rate decreases. © 2010 The American Physical Society.en_HK
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.orgen_HK
dc.relation.ispartofPhysical Review Lettersen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPhysical Review Letters. Copyright © American Physical Society.-
dc.subjectPhysics-
dc.titleHigh-redshift gamma-ray bursts: Observational signatures of superconducting cosmic strings?en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9007&volume=104 article no. 241102&spage=&epage=&date=2010&atitle=High-redshift+gamma-ray+bursts:+observational+signatures+of+superconducting+cosmic+strings?-
dc.identifier.emailCheng, KS: hrspksc@hkucc.hku.hken_HK
dc.identifier.emailHarko, T: harko@hkucc.hku.hken_HK
dc.identifier.authorityCheng, KS=rp00675en_HK
dc.identifier.authorityHarko, T=rp01333en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevLett.104.241102en_HK
dc.identifier.scopuseid_2-s2.0-77953693334en_HK
dc.identifier.hkuros171059-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77953693334&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume104en_HK
dc.identifier.issue24en_HK
dc.identifier.eissn1079-7114-
dc.identifier.isiWOS:000278772900001-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridCheng, KS=9745798500en_HK
dc.identifier.scopusauthoridYu, YW=10939495100en_HK
dc.identifier.scopusauthoridHarko, T=7006485783en_HK
dc.identifier.citeulike7328987-

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