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Article: Nonthermal origin of X-rays from rotation-powered neutron stars

TitleNonthermal origin of X-rays from rotation-powered neutron stars
Authors
KeywordsPulsars: general
Radiation mechanisms: nonthermal
Radiation mechanisms: thermal
X-rays: stars
Issue Date1998
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205
Citation
Astrophysical Journal Letters, 1998, v. 493 n. 1 PART II, p. L35-L38 How to Cite?
AbstractWe propose that the bulk of X-rays observed in pulsars results from the synchrotron radiation of e ± pairs created in strong pulsar magnetic field near the neutron star surface by curvature photons emitted by charged particles on their way from the outer gap to the neutron star surface. The characteristic energy of these curvature photons is completely determined by the size of the outer gap, which is self-consistently limited by thermal X-rays from the neutron star surface heated by the backflow electrons/positrons from the outer gap. It is this limitation of the outer gap size (potential drop) that constrains the luminosity L x of the synchrotron X-rays emitted by a pulsar to about 0.1% of its spin-down power L sd. © 1998. The American Astronomical Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/43216
ISSN
2015 Impact Factor: 5.487
2015 SCImago Journal Rankings: 3.369
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCheng, KSen_HK
dc.contributor.authorGil, Jen_HK
dc.contributor.authorZhang, Len_HK
dc.date.accessioned2007-03-23T04:41:30Z-
dc.date.available2007-03-23T04:41:30Z-
dc.date.issued1998en_HK
dc.identifier.citationAstrophysical Journal Letters, 1998, v. 493 n. 1 PART II, p. L35-L38en_HK
dc.identifier.issn2041-8205en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43216-
dc.description.abstractWe propose that the bulk of X-rays observed in pulsars results from the synchrotron radiation of e ± pairs created in strong pulsar magnetic field near the neutron star surface by curvature photons emitted by charged particles on their way from the outer gap to the neutron star surface. The characteristic energy of these curvature photons is completely determined by the size of the outer gap, which is self-consistently limited by thermal X-rays from the neutron star surface heated by the backflow electrons/positrons from the outer gap. It is this limitation of the outer gap size (potential drop) that constrains the luminosity L x of the synchrotron X-rays emitted by a pulsar to about 0.1% of its spin-down power L sd. © 1998. The American Astronomical Society. All rights reserved.en_HK
dc.format.extent102091 bytes-
dc.format.extent12158 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205en_HK
dc.relation.ispartofAstrophysical Journal Lettersen_HK
dc.rightsThe Astrophysical Journal. Copyright © University of Chicago Press.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPulsars: generalen_HK
dc.subjectRadiation mechanisms: nonthermalen_HK
dc.subjectRadiation mechanisms: thermalen_HK
dc.subjectX-rays: starsen_HK
dc.titleNonthermal origin of X-rays from rotation-powered neutron starsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0004-637X&volume=493&issue=pt 2&spage=L35&epage=L38&date=1998&atitle=Nonthermal+Origin+of+X-Rays+from+Rotation-powered+Neutron+Starsen_HK
dc.identifier.emailCheng, KS: hrspksc@hkucc.hku.hken_HK
dc.identifier.authorityCheng, KS=rp00675en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1086/311117en_HK
dc.identifier.scopuseid_2-s2.0-21944453783en_HK
dc.identifier.hkuros30079-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-21944453783&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume493en_HK
dc.identifier.issue1 PART IIen_HK
dc.identifier.spageL35en_HK
dc.identifier.epageL38en_HK
dc.identifier.isiWOS:000071810900009-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridCheng, KS=9745798500en_HK
dc.identifier.scopusauthoridGil, J=7201625642en_HK
dc.identifier.scopusauthoridZhang, L=38762428100en_HK

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