arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0809.2665astro-ph
收藏

小麦哲伦云中大质量X射线双星(HMXB)的光学性质

Optical properties of High-Mass X-ray Binaries (HMXB) in the Small Magellanic Cloud

M. J. Coe, R. H. D. Corbet, K. E. McGowan, V. A. McBride, M. P. E. Schurch, L. J. Townsend, J. L. Galache, I. Negueruela, D. Buckley

摘要:

SMC代表了一个令人兴奋的机会,观察恒星诞生的潮汐相互作用的直接结果。最近恒星诞生活动的最佳指标之一是存在大量的大质量X射线双星(HMXB)--而SMC拥有大量的HMXB!我们目前的结果,从近10年的监测这些系统加上丰富的其他地面光学数据。它们一起使我们能够构建一个星系的图像,该星系的质量只有银河系的百分之几,但拥有更广泛的HMXB人口。然而,正如经常发生的那样,新的发现导致了一些具有挑战性的难题-在SMC中的其他X射线双星(例如黑洞系统)在哪里?为什么几乎所有的SMC HMXB都有Be星伴?从这些广泛的光学观测的证据,这显然是不寻常的恒星演化进行了讨论。

英文摘要:

The SMC represents an exciting opportunity to observe the direct results of tidal interactions on star birth. One of the best indicators of recent star birth activity is the presence of signicant numbers of High-Mass X-ray Binaries (HMXBs) - and the SMC has them in abundance! We present results from nearly 10 years of monitoring these systems plus a wealth of other ground-based optical data. Together they permit us to build a picture of a galaxy with a mass of only a few percent of the Milky Way but with a more extensive HMXB population. However, as often happens, new discoveries lead to some challenging puzzles - where are the other X-ray binaries (eg black hole systems) in the SMC? And why do virtually all the SMC HMXBs have Be starcompanions? The evidence arising from these extensive optical observations for this apparently unusual stellar evolution are discussed.

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。

↑