Superorbital period variations in the X-ray pulsar LMC X-4

被引：18
|
作者：
Paul, B
Kitamoto, S
机构：
[1] Tata Inst Fundamental Res, Mumbai 400005, India
[2] Rikkyo Univ, Dept Phys, Toshima Ku, Tokyo 1718501, Japan
来源：
JOURNAL OF ASTROPHYSICS AND ASTRONOMY | 2002年 / 23卷 / 1-2期
关键词：
accretion; accretion disks; stars : individual (LMC X-4); stars : neutron; X-rays; stars; binaries;
D O I：
10.1007/BF02702462
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report the discovery of a decay in the superorbital period of the binary X-ray pulsar LMC X-4. Combining archival data and published long term X-ray light curves, we have found a decay in the third period in this system (P similar to 30.3 day, P similar to -2 x 10(-5) s s(-1)). Along with this result, a comparison of the superorbital intensity variations in LMC X-4, Her X-1 and SMC X-1 is also presented.
引用
收藏
页码：33 / 38
页数：6
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