标题： 银河系 bulge 中的超紧致X射线双星系统 显示英文标题

标题： Ultra-compact X-ray binaries in the Galactic Bulge

摘要： 我们对银河系 bulge 中超紧致 X 射线双星（UCXBs）的当前数目和特性进行了建模。 主要目标是比较与即将从银河系 bulge 巡天（GBS）获得的数据，以了解形成场景，特别是核心塌缩超新星率、共有包层演化和动力学相互作用，以及双星初始质量函数。 我们使用了二元群体综合代码和详细的恒星演化轨迹，并结合了 11 个已知 UCXB 的观测结果。 我们预测有几百个周期为 20-40 分钟的微弱 UCXBs，这些 UCXBs 将会被 GBS 检测到。 显示英文摘要

摘要： We model the present-day number and characteristics of Ultra-compact X-ray binaries (UCXBs) in the Galactic Bulge. The main objective is to compare the results with the forthcoming data from the Galactic Bulge Survey (GBS) in order to learn about formation scenarios, notably core collapse supernova rate, common envelope evolution and dynamical interactions, as well as the binary initial mass function. We use a binary population synthesis code and detailed stellar evolutionary tracks, combined with observations of the 11 known UCXBs. We predict a few hundred faint UCXBs with periods of 20-40 minutes that would be detectable by the GBS.