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arXiv 0810.4915astro-ph
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RXTE和Chandra观测中麦哲伦云X射线双星的性质

Properties of X-ray Binaries in the Magellanic Clouds from RXTE and Chandra Observations

R. H. D. Corbet, M. J. Coe, K. E. McGowan, M. P. E. Schurch, L. J. Townsend, J. L. Galache, F. E. Marshall

摘要:

SMC的X射线二进制人口是非常不同的银河系组成,除了一个例外,完全是瞬态脉动的Be/中子星二进制。我们现在已经使用罗西X射线定时探测器监测这些SMC X射线天体超过10年,通常每周进行一次观测。RXTE观测得到了钱德拉天文台观测的补充。RXTE观测是非成像的,但可以对脉冲源进行详细的研究。相比之下,钱德拉观测可以提供精确的源位置和较低通量水平的源检测,但不提供相同的定时信息或延长的持续时间光变曲线,RXTE观测。我们总结了这些监测计划的结果,这些监测计划提供了深入了解SMC和银河系之间的差异,并在X射线天体的吸积过程的细节。

英文摘要:

The X-ray binary population of the SMC is very different from that of the Milky Way consisting, with one exception, entirely of transient pulsating Be/neutron star binaries. We have now been monitoring these SMC X-ray pulsars for over 10 years using the Rossi X-ray Timing Explorer with observations typically every week. The RXTE observations have been complemented with surveys made using the Chandra observatory. The RXTE observations are non-imaging but enable detailed studies of pulsing sources. In contrast, Chandra observations can provide precise source locations and detections of sources at lower flux levels, but do not provide the same timing information or the extended duration light curves that RXTE observations do. We summarize the results of these monitoring programs which provide insights into both the differences between the SMC and the Milky Way, and the details of the accretion processes in X-ray pulsars.

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