File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: The synchrotron self-compton model for x-ray and γ-ray emission from pulsars

TitleThe synchrotron self-compton model for x-ray and γ-ray emission from pulsars
Authors
KeywordsElementary particles
Gamma rays: theory
Pulsars: general
Radiation mechanisms: nonthermal
Stars: neutron
X-rays: stars
Issue Date1995
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205
Citation
Astrophysical Journal Letters, 1995, v. 448 n. 1, p. 281-288 How to Cite?
AbstractWe compare the observed X-ray luminosity emitted from pulsars with that calculated from various theoretical models and find that the X-ray emission from six pulsars is much stronger than that predicted by theoretical models. We suggest that these pulsars with unusually intense X-ray emission could also be γ-ray emitters. Electrons/positrons are accelerated in the outer magnetospheric gap and lose most of their energy via curvature radiation (primary photons), which will be converted to secondary e ± pairs outside the gap in collision with the secondary X-rays. A simple synchrotron self-Compton model is then used to calculate the X-ray and γ-ray emission from the secondary e ± pairs. This model only contains a single free parameter, which characterizes the size of the acceleration region and can be estimated by comparison with that of the Crab pulsar. Our model results are consistent with the observed data and upper limits of γ-ray emission and phase separation between pulses. Other implications for future observations are also discussed in the text.
Persistent Identifierhttp://hdl.handle.net/10722/43431
ISSN
2015 Impact Factor: 5.487
2015 SCImago Journal Rankings: 3.369
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCheng, KSen_HK
dc.contributor.authorWei, DMen_HK
dc.date.accessioned2007-03-23T04:45:34Z-
dc.date.available2007-03-23T04:45:34Z-
dc.date.issued1995en_HK
dc.identifier.citationAstrophysical Journal Letters, 1995, v. 448 n. 1, p. 281-288en_HK
dc.identifier.issn2041-8205en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43431-
dc.description.abstractWe compare the observed X-ray luminosity emitted from pulsars with that calculated from various theoretical models and find that the X-ray emission from six pulsars is much stronger than that predicted by theoretical models. We suggest that these pulsars with unusually intense X-ray emission could also be γ-ray emitters. Electrons/positrons are accelerated in the outer magnetospheric gap and lose most of their energy via curvature radiation (primary photons), which will be converted to secondary e ± pairs outside the gap in collision with the secondary X-rays. A simple synchrotron self-Compton model is then used to calculate the X-ray and γ-ray emission from the secondary e ± pairs. This model only contains a single free parameter, which characterizes the size of the acceleration region and can be estimated by comparison with that of the Crab pulsar. Our model results are consistent with the observed data and upper limits of γ-ray emission and phase separation between pulses. Other implications for future observations are also discussed in the text.en_HK
dc.format.extent1217684 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.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsThe Astrophysical Journal. Copyright © University of Chicago Press.en_HK
dc.subjectElementary particlesen_HK
dc.subjectGamma rays: theoryen_HK
dc.subjectPulsars: generalen_HK
dc.subjectRadiation mechanisms: nonthermalen_HK
dc.subjectStars: neutronen_HK
dc.subjectX-rays: starsen_HK
dc.titleThe synchrotron self-compton model for x-ray and γ-ray emission from pulsarsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0004-637X&volume=448&spage=281&epage=288&date=1995&atitle=The+Synchrotron+Self-Compton+Model+for+X-Ray+and+γ-Ray+Emission+from+Pulsarsen_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.doi10.1086/175959en_HK
dc.identifier.scopuseid_2-s2.0-11944275516en_HK
dc.identifier.volume448en_HK
dc.identifier.issue1en_HK
dc.identifier.spage281en_HK
dc.identifier.epage288en_HK
dc.identifier.isiWOS:A1995RJ48900024-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridCheng, KS=9745798500en_HK
dc.identifier.scopusauthoridWei, DM=7202908906en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats