On the Wolf-Rayet counterpart to IC 10 X-1
On the Wolf-Rayet counterpart to IC 10 X-1
复制标题
DOI：
10.1051/0004-6361:20031762
复制
发表时间：
2004-02
影响因子：
6.5
通讯作者：
J. Clark;P. Crowther
中科院分区：
文献类型：
--
作者：
J. Clark;P. Crowther
最近对星暴星系IC 10的C-10观测发现了明亮（>10 38 erg s −1）的X射线源IC 10 X-1的位置。我们讨论了支持Massey等人和Crowther等人的Wolf-Rayet星星#17-A是光学对应物的论点;也考虑了其他可能性。我们讨论了Massey等人的17-A的性质，发现它是已知的最明亮的WNE恒星之一，因此质量最大，并与Cyg X-3进行了比较。最后，我们研究进化的约束有关的性质的紧凑的同伴，发现一个假定的中子星星同伴将严格的限制，所需的最低祖质量形成一个黑洞在密切的双星。
Recent C observations of the starburst galaxy IC 10 have resulted in an improved position for the bright (>10 38 erg s −1 ) X-ray source IC 10 X-1. We discuss arguments in favour of the Wolf-Rayet star #17-A from Massey et al. and Crowther et al. being the optical counterpart; alternative possibilities are also considered. We discuss the properties of Massey et al. 17-A, finding it to be amongst the most luminous - and hence massive - WNE stars known and make compar- isons with Cyg X-3. Finally we examine evolutionary constraints relating to the nature of the compact companion, finding that a putative neutron star companion would place stringent constraints on the minimum progenitor mass required to form a black hole in close binaries.