Numerical Studies of Tidal Disruption Events

主讲人 (Speaker): 牟国斌

主讲人单位 (Speaker's Institute): 武汉大学

邀请人 (Invited by): 申荣锋

时间 (Time): 星期四, 2018/06/28 - 15:00 to 16:00

地点 (Location): 珠海校区海滨红楼17栋107会议室

摘要 (Abstract):

TDE (Tidal Disruption Event) is an occasional and dramatic accretion event of massive black holes. When a star comes too close to the black hole, the strong tidal force can tear apart the star, and part of the star becomes bound to black hole while the other part escapes. The recent simulations have provided several challenges to the early models established 30 years ago. In the meanwhile, limited by techniques, there is still a lack of simulations on long-term evolution with standard parameters — parabolic orbit and large mass ratio. Therefore, theoretical studies still have not yet reached an agreement on several fundamental issues. Here we present a new technique — the Adjustable Meshes version of ZEUS code and introduce our current results with this method, including the falling back process of the bound debris and the outflowing unbound debris.

主讲人简介 (Speaker's CV):

武汉大学物理学院协同中心研究员（2018年4月起）。2010年毕业于兰州大学理论物理专业，获学士学位。2015年毕业于上海天文台，获博士学位。2015年8月-2018年4月在中国科学技术大学从事博士后研究工作。主要研究兴趣：AGN outflows，AGN feedback, TDE, Fermi Bubbles. Guobin Mou, researcher in Collaborative Center of School of Physics, Wuhan University. In 2010, he got bachelor's degree of theoretical physics in Lanzhou University. In 2015, he got PhD degree of astrophysics in Shanghai Astronomical Observatory. 2015.08 -- 2018.04, he was engaged in postdoctoral research in USTC. From 2018.04, he works as a researcher in Wuhan University. His main interests include AGN outflows, AGN feedback, TDE, and Fermi bubbles.