The X-Ray Properties of M101 ULX-1 = CXOKM101 J140332.74+542102
The X-Ray Properties of M101 ULX-1 = CXOKM101 J140332.74+542102
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DOI：
10.1086/497110
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发表时间：
2005-08
期刊：
影响因子：
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通讯作者：
K. Mukai;K. Mukai;Martin D. Still;Martin D. Still;R. Corbet;R. Corbet;K. D. Kuntz;K. D. Kuntz;Robin Barnard
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文献类型：
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作者：
K. Mukai;K. Mukai;Martin D. Still;Martin D. Still;R. Corbet;R. Corbet;K. D. Kuntz;K. D. Kuntz;Robin Barnard
我们报告了我们对M101 ULX-1的x射线数据的分析，重点是高状态钱德拉和xmm -牛顿观测。我们发现M101 ULX-1的高态可能有一个优先的重复时间标度。如果是这样，基础时钟的周期可能在160或190天左右，也可能在45天左右。它的短期变化类似于高吸积率的x射线双星。如果这个类比是正确的，我们推断这个吸积体是一个20-40 M☉的天体。这与我们对M101 ULX-1的高态光谱的光谱分析是一致的，从中我们没有发现极端（bbb1040ergs -1）亮度的证据。我们在一个由B超巨星质量供体和一个大恒星质量黑洞组成的高质量x射线双星系统的框架内提出了我们的解释。
We report our analysis of X-ray data on M101 ULX-1, concentrating on high-state Chandra and XMM-Newton observations. We find that the high state of M101 ULX-1 may have a preferred recurrence timescale. If so, the underlying clock may have periods around 160 or 190 days, or possibly around 45 days. Its short-term variations resemble those of X-ray binaries at high accretion rates. If this analogy is correct, we infer that the accretor is a 20-40 M☉ object. This is consistent with our spectral analysis of the high-state spectra of M101 ULX-1, from which we find no evidence for an extreme (>1040 ergs s-1) luminosity. We present our interpretation in the framework of a high-mass X-ray binary system consisting of a B supergiant mass donor and a large stellar-mass black hole.