Non-thermal pulsed X-ray emission from rotation-powered pulsars

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	Non-thermal pulsed X-ray emission from rotation-powered pulsars
	Zhang L(张力)1,2 ; Jiang, ZJ2
刊名	ASTRONOMY & ASTROPHYSICS
	2006-08
卷号	454 期号:2 页码:537-542
关键词	pulsars : general radiation mechanisms : non-thermal X-rays : stars
ISSN号	0004-6361
通讯作者	Zhang, L (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming, Peoples R China.
产权排序	第一完成单位
英文摘要	We study the properties of the pulsed component of hard (> 2 keV) X-ray emission from pulsars based on the new version of the outer-gap model proposed by Zhang et al. (2004). In this outer-gap model, high-energy photons emitted by relativistic charged particles produce e(+/-) pairs through magnetic-pair production on their way from the outer gap to the neutron-star surface, and these pairs produce the bulk of pulsed X-rays by the synchrotron radiation. The X-ray luminosity of rotation-powered pulsars is a function not only of the period and magnetic field strength, but also of the magnetic inclination angle. Application of this model to the observed pulsed X-ray emission of normal pulsars by ASCA shows a better consistence. Further, the inclination angles of these pulsars are estimated using the observed X-ray data, and the predicted conversion efficiencies of high-energy gamma-rays for seven confirmed gamma-ray pulsars are consistent with the observed data.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	OUTER GAP ACCELERATOR ; ELECTRIC-FIELD STRUCTURE ; GAMMA-RAY ; NEUTRON-STARS ; LUMINOSITY ; SPECTRUM ; MODEL ; YOUNG ; RADIATION ; LOCATION
收录类别	SCI ; EI
原文出处	http://www.aanda.org/10.1051/0004-6361:20052758
语种	英语
WOS记录号	WOS:000239004300044
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4201]
专题	云南天文台_其他
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, PO Box 110, Kunming, China 2.Department of Physics, Yunnan University, Kunming, China
推荐引用方式 GB/T 7714	Zhang L,Jiang, ZJ. Non-thermal pulsed X-ray emission from rotation-powered pulsars[J]. ASTRONOMY & ASTROPHYSICS,2006,454(2):537-542.
APA	Zhang L,&Jiang, ZJ.(2006).Non-thermal pulsed X-ray emission from rotation-powered pulsars.ASTRONOMY & ASTROPHYSICS,454(2),537-542.
MLA	Zhang L,et al."Non-thermal pulsed X-ray emission from rotation-powered pulsars".ASTRONOMY & ASTROPHYSICS 454.2(2006):537-542.