File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Contribution to diffuse gamma-rays in the Galactic Centre region from unresolved millisecond pulsars

TitleContribution to diffuse gamma-rays in the Galactic Centre region from unresolved millisecond pulsars
Authors
KeywordsGalaxy: centre
Gamma-rays: theory
Pulsars: general
Radiation mechanisms: non-thermal
Issue Date2005
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, 2005, v. 358 n. 1, p. 263-269 How to Cite?
AbstractDiffuse gamma-rays in the Galactic Centre region have been studied. We propose that there exists a population of millisecond pulsars in the Galactic Centre, which emit GeV gamma-rays through synchrotron-curvature radiation as predicted by outer gap models. These GeV gamma-rays from unresolved millisecond pulsars probably contribute to the diffuse gamma-ray spectrum detected by EGRET which displays a break at a few GeV. We have used a Monte Carlo method to obtain simulated samples of millisecond pulsars in the Galactic Centre region covered by EGRET (∼1°.5) according to the different period and magnetic field distributions from observed millisecond pulsars in the Galactic field and globular clusters, and superposed their synchrotron-curvature spectra to derive the total GeV flux. Our simulated results suggest that there probably exist about 6000 unresolved millisecond pulsars in the region of angular resolution of EGRET, the emissions of which could contribute significantly to the observed diffuse gamma-rays in the Galactic Centre. © 2005 RAS.
Persistent Identifierhttp://hdl.handle.net/10722/81037
ISSN
2015 Impact Factor: 4.952
2015 SCImago Journal Rankings: 2.806
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWang, Wen_HK
dc.contributor.authorJiang, ZJen_HK
dc.contributor.authorCheng, KSen_HK
dc.date.accessioned2010-09-06T08:13:02Z-
dc.date.available2010-09-06T08:13:02Z-
dc.date.issued2005en_HK
dc.identifier.citationMonthly Notices Of The Royal Astronomical Society, 2005, v. 358 n. 1, p. 263-269en_HK
dc.identifier.issn0035-8711en_HK
dc.identifier.urihttp://hdl.handle.net/10722/81037-
dc.description.abstractDiffuse gamma-rays in the Galactic Centre region have been studied. We propose that there exists a population of millisecond pulsars in the Galactic Centre, which emit GeV gamma-rays through synchrotron-curvature radiation as predicted by outer gap models. These GeV gamma-rays from unresolved millisecond pulsars probably contribute to the diffuse gamma-ray spectrum detected by EGRET which displays a break at a few GeV. We have used a Monte Carlo method to obtain simulated samples of millisecond pulsars in the Galactic Centre region covered by EGRET (∼1°.5) according to the different period and magnetic field distributions from observed millisecond pulsars in the Galactic field and globular clusters, and superposed their synchrotron-curvature spectra to derive the total GeV flux. Our simulated results suggest that there probably exist about 6000 unresolved millisecond pulsars in the region of angular resolution of EGRET, the emissions of which could contribute significantly to the observed diffuse gamma-rays in the Galactic Centre. © 2005 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.subjectGalaxy: centreen_HK
dc.subjectGamma-rays: theoryen_HK
dc.subjectPulsars: generalen_HK
dc.subjectRadiation mechanisms: non-thermalen_HK
dc.titleContribution to diffuse gamma-rays in the Galactic Centre region from unresolved millisecond pulsarsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0035-8711&volume=358&spage=263&epage=269&date=2005&atitle=Contribution+to+diffuse+gamma-rays+in+the+Galactic+Centre+region+from+unresolved+millisecond+pulsarsen_HK
dc.identifier.emailCheng, KS: hrspksc@hkucc.hku.hken_HK
dc.identifier.authorityCheng, KS=rp00675en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1365-2966.2005.08816.xen_HK
dc.identifier.scopuseid_2-s2.0-15544370658en_HK
dc.identifier.hkuros97628en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-15544370658&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume358en_HK
dc.identifier.issue1en_HK
dc.identifier.spage263en_HK
dc.identifier.epage269en_HK
dc.identifier.isiWOS:000227478900025-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridWang, W=21234341100en_HK
dc.identifier.scopusauthoridJiang, ZJ=7404280278en_HK
dc.identifier.scopusauthoridCheng, KS=9745798500en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats