主讲人单位 (Speaker's Institute): 伯明翰大学

邀请人 (Invited by): 胡一鸣

时间 (Time): 星期三,2022/05/18-16:00 to 17:00

地点 (Location): 腾讯会议

摘要 (Abstract): 

白矮星是研究银河系的一种很成熟的工具。位于密切相关轨道上的两个白矮星组成双白矮星系统可以提供额外的信息即引力波用于探索系内和周边环境信息。由白矮星提供的引力波信号可以被空间引力波探测器如LISA和天琴探测到。 我将讨论我们可以从白矮星的引力波样本中学到哪些关于我们星系的信息。特别的，我将论证白矮星的密度分布可以将银河系核球、圆盘和中心棒的尺度因子限制到多好。最后，我将展示巨大的银河系卫星可以被引力波空间观测到，同时，我也将揭示我们可以利用引力波获取它们的哪些性质。

主讲人简介 (Speaker's CV): 

Valeriya Korol gained her MSc in Astrophysics and Cosmology from the

University of Bologna, Italy, in 2014. After completing a PhD in

Astrophysics at the Leiden Observatory, Leiden University, Netherlands, in

2019, she was awarded a Rubicon postdoctoral fellowship by the Netherlands

Organization for Science to study at the Institute for Gravitational Wave

Astronomy, University of Birmingham. Her current scientific work focuses

on how gravitational waves from sources within our Galaxy - mainly binary

systems composed of white dwarf stars - can be used to reconstruct the

structure and the past history of the Milky Way.