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Article: The optical, X-ray and gamma-ray light curves and spectra of crab-like pulsars: PSR B0540-69 and PSR B1509-58
Title | The optical, X-ray and gamma-ray light curves and spectra of crab-like pulsars: PSR B0540-69 and PSR B1509-58 |
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Authors | |
Keywords | Gamma rays: theory Stars: pulsars: individual: PSR B0540-69 Stars: pulsars: individual: PSR B1509-58 X-rays: stars |
Issue Date | 2000 |
Publisher | E D P Sciences. The Journal's web site is located at http://www.aanda.org |
Citation | Astronomy And Astrophysics, 2000, v. 363 n. 2, p. 575-584 How to Cite? |
Abstract | Based on the three dimensional outer magnetosphere model of pulsars proposed by Cheng, Ruderman and Zhang, we calculate the light curves and spectra of the Crab-like pulsars: PSR B0540-69 and PSR B1509-58. In this model, thermal photon emission from the entire stellar surface is due to the bombardment of the backflow charged particles from the outer gap and cyclotron resonance scattering (Cheng & Zhang 1999). Non-thermal photons are emitted by e± pairs produced by backflow charged particles from the outer gap through a synchrotron radiation mechanism near the stellar surface and in a finite region just above the outer gap through a synchrotron self-Compton mechanism. For PSR B1509-58, when the magnetic inclination and viewing angle are 60° and 75° respectively, the photon emission region has a mean thickness of ∼ 0.11RL, where RL is the radius of the light cylinder. The expected broad single pulse in optical, X-ray and γ-ray energy bands are comparable with the observed light curves with a correct phase off-set with respect to the radio pulse, and the model spectrum is consistent with the observed spectrum. For PSR B0540-69, the calculated mean thickness of the photon emission region is ∼ 0.21RL and the model light curve and spectrum are similar to the observed data if the magnetic inclination and viewing angle are 50° and 76° respectively. |
Persistent Identifier | http://hdl.handle.net/10722/80565 |
ISSN | 2023 Impact Factor: 5.4 2023 SCImago Journal Rankings: 1.896 |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhang, L | en_HK |
dc.contributor.author | Cheng, KS | en_HK |
dc.date.accessioned | 2010-09-06T08:07:51Z | - |
dc.date.available | 2010-09-06T08:07:51Z | - |
dc.date.issued | 2000 | en_HK |
dc.identifier.citation | Astronomy And Astrophysics, 2000, v. 363 n. 2, p. 575-584 | en_HK |
dc.identifier.issn | 0004-6361 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/80565 | - |
dc.description.abstract | Based on the three dimensional outer magnetosphere model of pulsars proposed by Cheng, Ruderman and Zhang, we calculate the light curves and spectra of the Crab-like pulsars: PSR B0540-69 and PSR B1509-58. In this model, thermal photon emission from the entire stellar surface is due to the bombardment of the backflow charged particles from the outer gap and cyclotron resonance scattering (Cheng & Zhang 1999). Non-thermal photons are emitted by e± pairs produced by backflow charged particles from the outer gap through a synchrotron radiation mechanism near the stellar surface and in a finite region just above the outer gap through a synchrotron self-Compton mechanism. For PSR B1509-58, when the magnetic inclination and viewing angle are 60° and 75° respectively, the photon emission region has a mean thickness of ∼ 0.11RL, where RL is the radius of the light cylinder. The expected broad single pulse in optical, X-ray and γ-ray energy bands are comparable with the observed light curves with a correct phase off-set with respect to the radio pulse, and the model spectrum is consistent with the observed spectrum. For PSR B0540-69, the calculated mean thickness of the photon emission region is ∼ 0.21RL and the model light curve and spectrum are similar to the observed data if the magnetic inclination and viewing angle are 50° and 76° respectively. | en_HK |
dc.language | eng | en_HK |
dc.publisher | E D P Sciences. The Journal's web site is located at http://www.aanda.org | en_HK |
dc.relation.ispartof | Astronomy and Astrophysics | en_HK |
dc.subject | Gamma rays: theory | en_HK |
dc.subject | Stars: pulsars: individual: PSR B0540-69 | en_HK |
dc.subject | Stars: pulsars: individual: PSR B1509-58 | en_HK |
dc.subject | X-rays: stars | en_HK |
dc.title | The optical, X-ray and gamma-ray light curves and spectra of crab-like pulsars: PSR B0540-69 and PSR B1509-58 | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0004-6361&volume=363&spage=575&epage=584&date=2000&atitle=The+Optical,+X-Ray+and+Gamma-Ray+Light+Curves+and+Spectra+of+Crab-Like+Pulsars:+PSR+B0540-69+and+PSR+B1509-58 | en_HK |
dc.identifier.email | Cheng, KS: hrspksc@hkucc.hku.hk | en_HK |
dc.identifier.authority | Cheng, KS=rp00675 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.scopus | eid_2-s2.0-0000535579 | en_HK |
dc.identifier.hkuros | 56351 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0000535579&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 363 | en_HK |
dc.identifier.issue | 2 | en_HK |
dc.identifier.spage | 575 | en_HK |
dc.identifier.epage | 584 | en_HK |
dc.publisher.place | France | en_HK |
dc.identifier.scopusauthorid | Zhang, L=9432987500 | en_HK |
dc.identifier.scopusauthorid | Cheng, KS=9745798500 | en_HK |
dc.identifier.issnl | 0004-6361 | - |