Title：The structures of neutron stars and observational constraints

Speaker：高勇

  北京大学物理学院天文学系博士，于2018年获得大连理工大学物理学院学士学位，随后进入北京大学物理学院天文学系攻读博士学位，并于2023年毕业，即将前往德国马克斯·普朗克引力研究所从事博士后研究，研究方向为数值相对论。他的研究兴趣主要集中在中子星与相对论流体动力学领域，目前致力于研究中子星的内部结构并利用天文学观测检验致密物态模型。

Abstract：

Neutron stars (NSs) are extremely compact objects in the Universe and serve as ideal laboratories for studying dense matter and strong-field gravity. The equation of state of NSs is currently poorly understood due to our lack of knowledge about non-perturbative QCD. Moreover, to provide a realistic description of matter, we need to consider various factors such as superfluidity, strong magnetic fields, elasticity, and neutrino physics. Therefore, understanding the composition and state of matter under extreme conditions inside NSs presents a great challenge in both fundamental physics and astrophysics.

In this talk, I will present our studies on rotating, tidally-deformed, and precessing NSs. I will also discuss how to use radio, X-ray, and gravitational-wave observations to study these scenarios and thereby probe the equation of state of NSs.

时间&地点：2023年7月18日15:30，物理学院425