Analyzing X-ray pulsar profiles: Geometry and beam pattern of Centaurus X-3

被引：38

作者：

Kraus, U ^{[1
]}

Blum, S ^{[1
]}

Schulte, J ^{[1
]}

Ruder, H ^{[1
]}

Meszaros, P ^{[1
]}

机构：

[1] PENN STATE UNIV,UNIVERSITY PK,PA 16802

来源：

ASTROPHYSICAL JOURNAL | 1996年 / 467卷 / 02期

关键词：

pulsars; individual (Centaurus X-3); stars; X-rays;

D O I：

10.1086/177653

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present an analysis of the energy-dependent asymmetric pulse profile of the X-ray pulsar Cen X-3. We show that the data are compatible with the assumption that the asymmetry is caused by a distorted magnetic dipole field. Based on this assumption, it is possible to decompose the pulse profile into the contributions of the two emission regions at the magnetic poles. The results of the decomposition indicate that Cen X-3 has two equal emission regions which are displaced from antipodal positions by approximately 10 degrees and have a pencil plus fan beam pattern.

引用

页码：794 / 805

页数：12

共 28 条

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