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Article: The contribution of pulsars to diffuse gamma-rays in the Large Magellanic Cloud

TitleThe contribution of pulsars to diffuse gamma-rays in the Large Magellanic Cloud
Authors
KeywordsGamma-rays: theory
Magellanic Clouds
Pulsars: general
Issue Date1998
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, 1998, v. 294 n. 4, p. 729-733 How to Cite?
AbstractWe study the contribution of young pulsars, with characteristic ages of less than 106 yr, to the diffuse γ-ray emission from the Large Magellanic Cloud (LMC). Based on the outer gap model for γ-ray emission proposed by Zhang & Cheng and pulsar properties in the LMC given by Hartmann, Brown & Schnepf, we simulate the properties of the young pulsars in the LMC. We show that γ-rays produced by the pulsars in the LMC may make an important contribution to the diffuse γ-rays in the LMC, especially in the high-energy range. We calculate the γ-ray energy spectrum of the pulsars in the LMC and show that the γ-ray component contributed by the pulsars to the diffuse γ-rays in the high-energy range (above ∼1 GeV) becomes dominant. We expect that none of the young pulsars should be detectable as an individual point source of γ-ray emission by EGRET. We also expect that pulsar contribution above ∼1 GeV in the SMC is very important.
Persistent Identifierhttp://hdl.handle.net/10722/80955
ISSN
2015 Impact Factor: 4.952
2015 SCImago Journal Rankings: 2.806
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, Len_HK
dc.contributor.authorCheng, KSen_HK
dc.date.accessioned2010-09-06T08:12:08Z-
dc.date.available2010-09-06T08:12:08Z-
dc.date.issued1998en_HK
dc.identifier.citationMonthly Notices Of The Royal Astronomical Society, 1998, v. 294 n. 4, p. 729-733en_HK
dc.identifier.issn0035-8711en_HK
dc.identifier.urihttp://hdl.handle.net/10722/80955-
dc.description.abstractWe study the contribution of young pulsars, with characteristic ages of less than 106 yr, to the diffuse γ-ray emission from the Large Magellanic Cloud (LMC). Based on the outer gap model for γ-ray emission proposed by Zhang & Cheng and pulsar properties in the LMC given by Hartmann, Brown & Schnepf, we simulate the properties of the young pulsars in the LMC. We show that γ-rays produced by the pulsars in the LMC may make an important contribution to the diffuse γ-rays in the LMC, especially in the high-energy range. We calculate the γ-ray energy spectrum of the pulsars in the LMC and show that the γ-ray component contributed by the pulsars to the diffuse γ-rays in the high-energy range (above ∼1 GeV) becomes dominant. We expect that none of the young pulsars should be detectable as an individual point source of γ-ray emission by EGRET. We also expect that pulsar contribution above ∼1 GeV in the SMC is very important.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: theoryen_HK
dc.subjectMagellanic Cloudsen_HK
dc.subjectPulsars: generalen_HK
dc.titleThe contribution of pulsars to diffuse gamma-rays in the Large Magellanic Clouden_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0035-8711&volume=294&spage=729&epage=733&date=1998&atitle=The+Contribution+of+Pulsars+to+Diffuse+Gamma-Rays+in+the+Large+Magellanic+Clouden_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-s2.0-0009531316en_HK
dc.identifier.hkuros31692en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0009531316&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume294en_HK
dc.identifier.issue4en_HK
dc.identifier.spage729en_HK
dc.identifier.epage733en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridZhang, L=9432987500en_HK
dc.identifier.scopusauthoridCheng, KS=9745798500en_HK

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