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.
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页码：49 / 53
页数：3
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