Parent distributions of the periods and magnetic inclination angles of radio pulsars

doi:10.1093/pasj/55.2.461

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	Parent distributions of the periods and magnetic inclination angles of radio pulsars
	Zhang L(张力)1,2 ; Jiang, ZJ 2; Mei, DC 2; Zhang, L (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming, Peoples R China.
发表期刊	PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
	2003
卷号	55 期号:2 页码:461-466
DOI	10.1093/pasj/55.2.461
产权排序	第1完成单位
收录类别	SCI ; EI
关键词	Pulsars : General Stars : Neutron Stars : Rotation
摘要	We studied the parent distributions of pulsar periods and inclination angles by means of the Monte Carlo method. In our simulations, assuming that the parent period distribution satisfies a gamma function with two parameters, we tested a number of various parent distributions of the inclination angles (alpha), which are the inclination angles of the magnetic axis to the pulsar spin axis, and different relations between the beam angular radius (rho) and the pulsar period (P) (i.e. rho-P relation). The simulated periods, pulse widths, and inclination angles were compared with the observed data using the Kolmogorov-Smirnov significance test. Our results indicate that: (i) the parent inclination angles could not be expressed by a flat function (a possible parent distribution is cosine-like or proportional to {0.6/cosh[3.5(alpha-0.43)]} + {0.15/cosh[4.0(alpha - 1.6)]}); (ii) the parent period distribution depends slightly on the rho-P relation, and is different from the observed period distribution (their differences can be expressed by different values of two parameters when the parent and observed period distributions can be described as gamma functions); and (iii) the average beaming fraction is about 0.12.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0004-6264
URL	查看原文
归档日期	2004-02-24
WOS记录号	WOS:000182614100013
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	EMPIRICAL-THEORY ; EMISSION REGION ; BEAMS ; GEOMETRY ; RADIATION ; EVOLUTION
EI入藏号	20215111360031
EI主题词	Pulsars
EI分类号	657.2 Extraterrestrial Physics and Stellar Phenomena - 922.2 Mathematical Statistics
引用统计	被引频次：12[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/4170
专题	其他
通讯作者	Zhang, L (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming, Peoples R China.
作者单位	1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming, P. R. China 2.Department of Physics, Yunnan University, Kunming, 650091, P. R. China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Zhang L,Jiang, ZJ,Mei, DC,et al. Parent distributions of the periods and magnetic inclination angles of radio pulsars[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2003,55(2):461-466.
APA	Zhang L,Jiang, ZJ,Mei, DC,&Zhang, L .(2003).Parent distributions of the periods and magnetic inclination angles of radio pulsars.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,55(2),461-466.
MLA	Zhang L,et al."Parent distributions of the periods and magnetic inclination angles of radio pulsars".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 55.2(2003):461-466.

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