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Article: General radiation formulae for a relativistic charged particle moving in curved magnetic field lines: The synchrocurvature radiation mechanism

TitleGeneral radiation formulae for a relativistic charged particle moving in curved magnetic field lines: The synchrocurvature radiation mechanism
Authors
KeywordsNonthermal - Relativity
Polarization - Radiation mechanisms
Issue Date1996
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205
Citation
Astrophysical Journal Letters, 1996, v. 463 n. 1 PART I, p. 271-283 How to Cite?
AbstractWe calculate the radiation spectrum, characteristic frequency, and power emitted by a relativistic charged particle moving in curved magnetic field lines with arbitrary pitch angle, which can be approximated by a curved spiral trajectory. We obtain some universal formulae which can be identical to either synchrotron radiation or curvature radiation in certain parametric regions, but in general the radiation features of this new mechanism can significantly differ from those of these two known mechanisms. Since magnetic field lines are generally curved in many real systems (e.g., a pulsar magnetosphere), this new mechanism can more realistically describe the radiation from relativistic charged particles in these systems. We also find that the degree of polarization is the best quantity to differentiate this new mechanism from the other two mechanisms. © 1996. The American Astronomical Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/43165
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.authorZhang, JLen_HK
dc.date.accessioned2007-03-23T04:40:29Z-
dc.date.available2007-03-23T04:40:29Z-
dc.date.issued1996en_HK
dc.identifier.citationAstrophysical Journal Letters, 1996, v. 463 n. 1 PART I, p. 271-283en_HK
dc.identifier.issn2041-8205en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43165-
dc.description.abstractWe calculate the radiation spectrum, characteristic frequency, and power emitted by a relativistic charged particle moving in curved magnetic field lines with arbitrary pitch angle, which can be approximated by a curved spiral trajectory. We obtain some universal formulae which can be identical to either synchrotron radiation or curvature radiation in certain parametric regions, but in general the radiation features of this new mechanism can significantly differ from those of these two known mechanisms. Since magnetic field lines are generally curved in many real systems (e.g., a pulsar magnetosphere), this new mechanism can more realistically describe the radiation from relativistic charged particles in these systems. We also find that the degree of polarization is the best quantity to differentiate this new mechanism from the other two mechanisms. © 1996. The American Astronomical Society. All rights reserved.en_HK
dc.format.extent1300917 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.subjectNonthermal - Relativityen_HK
dc.subjectPolarization - Radiation mechanismsen_HK
dc.titleGeneral radiation formulae for a relativistic charged particle moving in curved magnetic field lines: The synchrocurvature radiation mechanismen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0004-637X&volume=463&spage=271&epage=283&date=1996&atitle=General+Radiation+Formulae+for+a+Relativistic+Charged+Particle+Moving+in+Curved+Magnetic+Field+Lines:+The+Synchrocurvature+Radiation+Mechanismen_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.doi10.1086/177239en_HK
dc.identifier.scopuseid_2-s2.0-21344447201en_HK
dc.identifier.hkuros14182-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-21344447201&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume463en_HK
dc.identifier.issue1 PART Ien_HK
dc.identifier.spage271en_HK
dc.identifier.epage283en_HK
dc.identifier.isiWOS:A1996UL33900022-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridCheng, KS=9745798500en_HK
dc.identifier.scopusauthoridZhang, JL=14039783200en_HK

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