论文标题
银河为二进制二进制物的种群合成与氦星伴侣
Population Synthesis of Galactic Be-star Binaries with A Helium-star Companion
论文作者
论文摘要
最初建议LB-1携带一个非常庞大的（$ \ sim 70 m_ \ odot $）的黑洞，但最近被认为是质量转移二进制二进制二进制二进制二进制二进制二进制的，其中包含be star和he氦气（HE）恒星。在本文中，我们使用二元种群合成方法来模拟以银河系的二进制方式的潜在人群。祖细胞二元进化期间的传质过程在确定$ $ $ he二元人口的可能特性中起着至关重要的作用。通过构建具有显着不同质量转移效率的一系列物理模型，我们在当前的组件质量时期和be $ $ he二进制的轨道时期获得了预测的分布。特别是，我们表明，如果确实是$ - $ he系统，则LB-1很可能通过非保守的传质演变而发展。我们估计，$ 10^{3} $是$ - $ - $ he binaries，V频段明显比LB-1明亮。
LB-1 was originally suggested to harbour a very massive ($ \sim 70 M_\odot $) black hole, but was recently suggested to be a post-mass transfer binary containing a Be star and a helium (He) star. In this paper, we use the binary population synthesis method to simulate the potential population of the Be$ - $He binaries in the Milky Way. Mass transfer process during the progenitor binary evolution plays a vital role in determining the possible properties of the Be$ - $He binary population. By constructing a range of physical models with significantly different mass-transfer efficiencies, we obtain the predicted distributions at the current epoch of the component masses and the orbital periods for the Be$ - $He binaries. In particular, we show that, LB-1 very likely has evolved through non-conservative mass transfer if it is indeed a Be$ - $He system. We estimate that there are more than $ 10^{3} $ Be$ - $He binaries with V-band apparent magnitudes brighter than LB-1.
