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arXiv · 2408.08004

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
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Abstract

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.

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Gui-Yu Wang, Yong Shao, Jian-Guo He, Xiao-Jie Xu, Xiang-Dong Li. 2024-08-15. IC 10 X-1: A Double Black Hole Progenitor Probably Formed through Stable Mass Transfer. https://arxiv.org/abs/2408.08004

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