Discovery of two transient X-ray pulsars in the small magellanic cloud

被引：0

作者：

Laycock, S ^{[1
]}

Corbet, RHD ^{[1
]}

Coe, MJ ^{[1
]}

Perrodin, D ^{[1
]}

Marshall, F ^{[1
]}

Markwardt, C ^{[1
]}

机构：

[1] Univ Southampton, Dept Phys & Astron, Southampton SO17 3AA, Hants, England

来源：

GAMMA 2001 | 2001年 / 587卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent RXTE observations of the SMC have revealed two previously unknown transient X-ray pulsars with pulse periods of 95s and 4.78s. The sources are proposed as Be/neutron star systems on the basis of their pulsations, transient nature and characteristically hard spectra. Optical observations indicate an Ha emission-line star as a candidate optical counterpart. These results add to the emerging picture of the SMC as containing an extremely dense population of transient HMXBs, only a fraction of which are active at any one time.

引用

页码：49 / 53

页数：3

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