NAOC Open IR
脉冲星脉冲宽度的测量方法
徐钧; 韩金林; 王陈
2011
Source Publication天文学报
ISSN0001-5245
Volume052Issue:003Pages:180
Abstract脉冲宽度的测量方法有几种.最常用的脉冲宽度有Wpp(两峰值点的间距)、W50(最高峰值强度50%处的宽度)和W10(最高峰值强度10%处的宽度).另外,还有测量两个最外成分各自强度50%处的宽度Wc50和各自强度10%处的宽度Wc10.利用16颗双锥峰脉冲星和7颗核锥三峰脉冲星样本在1.4GHz的脉冲轮廓数据,测量了5种脉冲宽度.利用有磁倾角α和撞击角β数据的脉冲星,导出了对应的辐射束半径ρ,并验证其与脉冲星周期P之间的关系ρ∝P^-0.5.通过比较5种脉冲宽度导出的ρ与P关系的好坏,发现最外成分之间的宽度比前面3种宽度更好,其中Kc50宽度得出的相关关系最好.由此认为Wc50是最能反映辐射束宽度的测量值.还讨论了脉冲轮廓的对称性,发现后随的锥辐射成分与先导的锥辐射成分相比,更靠近核心辐射成分,两个锥辐射成分的宽度在统计上基本相同.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/51869
Collection中国科学院国家天文台
Affiliation中国科学院国家天文台
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
徐钧,韩金林,王陈. 脉冲星脉冲宽度的测量方法[J]. 天文学报,2011,052(003):180.
APA 徐钧,韩金林,&王陈.(2011).脉冲星脉冲宽度的测量方法.天文学报,052(003),180.
MLA 徐钧,et al."脉冲星脉冲宽度的测量方法".天文学报 052.003(2011):180.
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