The discovery of an outburst and pulsed X-ray flux from SMC X-2 using the Rossi X-ray Timing Explorer

被引：31
|
作者：
Corbet, RHD
Marshall, FE
Coe, MJ
Laycock, S
Handler, G
机构：
[1] NASA, Goddard Space Flight Ctr, High Energy Astrophys Lab, Greenbelt, MD 20771 USA
[2] Univ Space Res Assoc, Washington, DC USA
[3] Univ Southampton, Dept Phys & Astron, Southampton SO17 1BJ, Hants, England
[4] S African Astron Observ, ZA-7935 Cape Town, South Africa
来源：
ASTROPHYSICAL JOURNAL | 2001年 / 548卷 / 01期
关键词：
stars : individual (SMC X-2); stars : neutron; X-rays : stars;
D O I：
10.1086/318929
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Rossi X-Ray Timing Explorer (RXTE) All-Sky Monitor observations of SMC X-2 show that the source experienced an outburst in 2000 January-April reaching a peak luminosity of greater than similar to 10(38) ergs s(-1). RXTE Proportional Counter Array observations during this outburst reveal the presence of pulsations with a 2.37 s period. However, optical photometry of the optical counterpart shows that the source was still significantly fainter than it was more than a half a year after the outburst in the 1970s when SMC X-2 was discovered.
引用
收藏
页码：L41 / L44
页数：4
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