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Article: Gamma-ray production through inverse compton scattering with anisotropic photon field from accretion disk in AGNs

TitleGamma-ray production through inverse compton scattering with anisotropic photon field from accretion disk in AGNs
Authors
KeywordsAccretion, accretion disks
Black hole physics
Galaxies: active
Gamma rays: theory
Issue Date1997
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205
Citation
Astrophysical Journal Letters, 1997, v. 488 n. 1 PART I, p. 94-108 How to Cite?
AbstractWe give a detailed consideration of the photon spectrum produced by inverse Compton scattering off relativistic electrons in the anisotropic soft photon field from the accretion disk in jet model, assuming that the relativistic electrons and positrons are produced by collisions of relativistic protons with the soft photon and matter field. We considered soft photons from either the standard accretion disk or from the two-temperature accretion disk, respectively, which resulted in very different minimum Lorentz factors of the relativistic electrons and different scattered photon spectra. The scattered photon spectra seen from different angles and produced in various emission regions have been calculated for the different soft photon sources concerned and compared with results of other authors. The results of our calculations indicate that the instantaneous and stationary scattered photon spectra vary with the angle of scatter, the Lorentz factor of the jet, and the emission region of the γ-rays. Furthermore, whether X-rays and γ-rays can be produced cospatially depends upon the production mechanisms of the relativistic electrons. © 1997. The American Astronomical Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/43207
ISSN
2015 Impact Factor: 5.487
2015 SCImago Journal Rankings: 3.369
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, Len_HK
dc.contributor.authorCheng, KSen_HK
dc.date.accessioned2007-03-23T04:41:18Z-
dc.date.available2007-03-23T04:41:18Z-
dc.date.issued1997en_HK
dc.identifier.citationAstrophysical Journal Letters, 1997, v. 488 n. 1 PART I, p. 94-108en_HK
dc.identifier.issn2041-8205en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43207-
dc.description.abstractWe give a detailed consideration of the photon spectrum produced by inverse Compton scattering off relativistic electrons in the anisotropic soft photon field from the accretion disk in jet model, assuming that the relativistic electrons and positrons are produced by collisions of relativistic protons with the soft photon and matter field. We considered soft photons from either the standard accretion disk or from the two-temperature accretion disk, respectively, which resulted in very different minimum Lorentz factors of the relativistic electrons and different scattered photon spectra. The scattered photon spectra seen from different angles and produced in various emission regions have been calculated for the different soft photon sources concerned and compared with results of other authors. The results of our calculations indicate that the instantaneous and stationary scattered photon spectra vary with the angle of scatter, the Lorentz factor of the jet, and the emission region of the γ-rays. Furthermore, whether X-rays and γ-rays can be produced cospatially depends upon the production mechanisms of the relativistic electrons. © 1997. The American Astronomical Society. All rights reserved.en_HK
dc.format.extent406096 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.subjectAccretion, accretion disksen_HK
dc.subjectBlack hole physicsen_HK
dc.subjectGalaxies: activeen_HK
dc.subjectGamma rays: theoryen_HK
dc.titleGamma-ray production through inverse compton scattering with anisotropic photon field from accretion disk in AGNsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0004-637X&volume=488&issue=pt 1&spage=94&epage=108&date=1997&atitle=Gamma-Ray+Production+through+Inverse+Compton+Scattering+with+Anisotropic+Photon+Field+from+Accretion+Disk+in+AGNs+en_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.doi10.1086/304663en_HK
dc.identifier.scopuseid_2-s2.0-21944449859en_HK
dc.identifier.hkuros28719-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-21944449859&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume488en_HK
dc.identifier.issue1 PART Ien_HK
dc.identifier.spage94en_HK
dc.identifier.epage108en_HK
dc.identifier.isiWOS:A1997YB99100011-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridZhang, L=38762428100en_HK
dc.identifier.scopusauthoridCheng, KS=9745798500en_HK

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