The radial structure of pulsar radio emission regions

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	The radial structure of pulsar radio emission regions
	Wu, XJ; Huang, ZK ; Xu, XB
刊名	CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
	2002-10-01
卷号	2 期号:5 页码:454-462
关键词	stars : pulsars
ISSN号	1009-9271
英文摘要	An important parameter in the study of the radial structure of the pulsar radio emission region is the altitude of the emission, but this cannot be derived directly from the observations. The altitude can be expressed as a function of frequency, r(nu) proportional to nu(-xi), and the method of K analysis can be used to calculate the power law index xi from observations at different frequencies. We have calculated the value of xi for 18 pulsars observed at two frequencies, 610 MHz and 1408 MHz and for three pulsars observed at three or more frequencies. The average value of is 0.27, which indicates that the emission altitude increases with decreasing frequency and that the radial structure is compact.
学科主题	致密天体、高能和基础物理
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	RELATIVE LONGITUDE SHIFT ; EMPIRICAL-THEORY ; SOUTHERN PULSARS ; K-PARAMETER ; POLARIZATION ; ALTITUDES ; BEAMS ; MAGNETOSPHERES ; EVOLUTION ; GEOMETRY
收录类别	SCI
资助信息	National Natural Science Foundation of China(Grant Nos.10073001)
原文出处	http://www.chjaa.org/
语种	英语
WOS记录号	WOS:000178799000009
公开日期	2013-03-06
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/193]
专题	新疆天文台_其它
作者单位	1.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 2.Peking Univ, Chinese Acad Sci, Joint Beijing Astrophys Ctr, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Urumqi Astron Observ, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Wu, XJ,Huang, ZK,Xu, XB. The radial structure of pulsar radio emission regions[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2002,2(5):454-462.
APA	Wu, XJ,Huang, ZK,&Xu, XB.(2002).The radial structure of pulsar radio emission regions.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2(5),454-462.
MLA	Wu, XJ,et al."The radial structure of pulsar radio emission regions".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 2.5(2002):454-462.