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Article: Gamma-ray pulsars: The pulse profiles and phase-resolved spectra of Geminga

TitleGamma-ray pulsars: The pulse profiles and phase-resolved spectra of Geminga
Authors
KeywordsGamma-rays: theory
Pulsars: general
Pulsars: individual: geminea
Radiation mechanisms: non-thermal
Issue Date2001
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, 2001, v. 320 n. 4, p. 477-484 How to Cite?
AbstractWe present a calculation of a three-dimensional pulsar magnetosphere model to explain high energy emission from the Geminga pulsar with a thick outer gap. High-energy γ-rays are produced by primary accelerated particles with a power-law energy distribution through curvature radiation inside the outer gap. We also calculate the emission pattern, pulse profile and phase-resolved spectra of high-energy γ-rays of the Geminga pulsar, and find that its pulse profile is consistent with the observed one if the magnetic inclination and viewing angle are ∼50° and ∼86° respectively. We describe the relative phases among soft (thermal) X-rays hard (non-thermal) X-rays, and γ-rays. Our results indicate that X-ray and γ-ray emission from the Geminga pulsar may be explained by the single thick outer gap model. Finally, we discuss the implications of the radio and optical emission of the Geminga pulsar.
Persistent Identifierhttp://hdl.handle.net/10722/80655
ISSN
2015 Impact Factor: 4.952
2015 SCImago Journal Rankings: 2.806
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, Len_HK
dc.contributor.authorCheng, KSen_HK
dc.date.accessioned2010-09-06T08:08:50Z-
dc.date.available2010-09-06T08:08:50Z-
dc.date.issued2001en_HK
dc.identifier.citationMonthly Notices Of The Royal Astronomical Society, 2001, v. 320 n. 4, p. 477-484en_HK
dc.identifier.issn0035-8711en_HK
dc.identifier.urihttp://hdl.handle.net/10722/80655-
dc.description.abstractWe present a calculation of a three-dimensional pulsar magnetosphere model to explain high energy emission from the Geminga pulsar with a thick outer gap. High-energy γ-rays are produced by primary accelerated particles with a power-law energy distribution through curvature radiation inside the outer gap. We also calculate the emission pattern, pulse profile and phase-resolved spectra of high-energy γ-rays of the Geminga pulsar, and find that its pulse profile is consistent with the observed one if the magnetic inclination and viewing angle are ∼50° and ∼86° respectively. We describe the relative phases among soft (thermal) X-rays hard (non-thermal) X-rays, and γ-rays. Our results indicate that X-ray and γ-ray emission from the Geminga pulsar may be explained by the single thick outer gap model. Finally, we discuss the implications of the radio and optical emission of the Geminga pulsar.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.subjectPulsars: generalen_HK
dc.subjectPulsars: individual: gemineaen_HK
dc.subjectRadiation mechanisms: non-thermalen_HK
dc.titleGamma-ray pulsars: The pulse profiles and phase-resolved spectra of Gemingaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0035-8711&volume=320&spage=477&epage=484&date=2001&atitle=Gamma-Ray+Pulsars:+The+Pulse+Profiles+and+Phase-Resolved+Spectra+of+Gemingaen_HK
dc.identifier.emailCheng, KS: hrspksc@hkucc.hku.hken_HK
dc.identifier.authorityCheng, KS=rp00675en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1046/j.1365-8711.2001.03979.xen_HK
dc.identifier.scopuseid_2-s2.0-0009523733en_HK
dc.identifier.hkuros63968en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0009523733&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume320en_HK
dc.identifier.issue4en_HK
dc.identifier.spage477en_HK
dc.identifier.epage484en_HK
dc.identifier.isiWOS:000167171500011-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridZhang, L=9432987500en_HK
dc.identifier.scopusauthoridCheng, KS=9745798500en_HK

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