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

页码：L41 / L44

页数：4

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