arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0811.1702astro-ph
收藏

X射线双星的全球研究

A Global Study of X-ray Binaries

Robert Dunn, Rob Fender, Elmar Koerding, Clement Cabanac, Tomaso Belloni

摘要:

我们目前的初步结果,全球研究的X射线双星使用14 M的数据从罗西X射线定时探测器卫星。我们对GX 339-4的初步研究被概括为所使用的方法的介绍。我们使用一个一致的分析方案,所有的对象,三种不同的光谱模型,以适应幂律和光盘组件。我们还考虑了数据中存在直线的可能性。由此产生的近4000个观测允许跟踪的光谱特性的双星,因为他们通过爆发演变。我们的研究集中在双星在爆发时的盘和线性质。我们还显示了所研究的X射线双星的盘分数光度图,这将使我们能够进一步与活动星系核联系起来。

英文摘要:

We present preliminary results on a global study of X-ray binaries using 14 Ms of data from the Rossi X-ray Timing Explorer satellite. Our initial study on GX 339-4 is recapped as an introduction to the methods used. We use a consistent analysis scheme for all objects, with three different spectral models to fit the powerlaw and disc components. We also take into account the possibility of a line being present in the data. The resulting almost 4000 observations allow the tracking of the spectral properties of the binaries as they evolve through an outburst. Our investigations concentrate on the disc and line properties of the binaries when in outburst. We also show the Disc-Fraction Luminosity diagram for the population of X-ray binaries studied which will enable us to further links with AGN.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑