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arXiv 2408.08004astro-ph.HEastro-ph.SR
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IC 10 X-1:一个可能通过稳定质量转移形成的双黑洞前身天体

IC 10 X-1: A Double Black Hole Progenitor Probably Formed through Stable Mass Transfer

Gui-Yu Wang, Yong Shao, Jian-Guo He, Xiao-Jie Xu, Xiang-Dong Li

AI总结:

本研究针对IC 10 X-1中吸积致密天体性质不明的问题,采用带新质量转移稳定判据的双星种群合成方法模拟其形成,提出该致密天体为10-30倍太阳质量黑洞,前身经稳定质量转移形成。

摘要:

IC 10 X-1是包含沃尔夫-拉叶供体的近距X射线双星之一,可在大质量X射线双星与引力波源之间提供演化关联。目前IC 10 X-1中吸积致密天体的精确性质仍不明确,尽管它看起来更像黑洞而非中子星。本研究中,我们采用双星种群合成方法,通过假设不同的公共包层抛射效率,模拟类IC 10 X-1双星的形成。由于采用了新的质量转移稳定性判据,本工作相比此前研究取得了重要进展。这些判据使得类IC 10 X-1系统无需经历公共包层演化即可形成。基于计算结果,我们提出IC 10 X-1中的致密天体是质量约为10-30倍太阳质量($\sim 10-30M_\odot$)的黑洞,且该双星的前身演化很可能仅经历了稳定质量转移。

英文摘要:

IC 10 X-1 is one of close X-ray binaries containing a Wolf-Rayet donor, which can provide an evolutionary link between high-mass X-ray binaries and gravitational wave sources. It is still unclear about the precise nature of the accreting compact object in IC 10 X-1, although it looks more like a black hole than a neutron star. In this work, we use a binary population synthesis method to simulate the formation of IC 10 X-1 like binaries by assuming different common-envelope ejection efficiencies. This work represents a big step forward over previous studies since we adopt new criteria of mass-transfer stability. These criteria allow the formation of IC 10 X-1 like systems without experiencing common envelope evolution. Based on our calculations, we propose that the compact object in IC 10 X-1 is a black hole with mass of $\sim 10-30M_\odot$ and the progenitor evolution of this binary probably just experienced stable mass transfer.

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。

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