报告题目：Outbursts of black hole X-ray binaries

　　报告人：游贝 副教授（武汉大学）

　　报告摘要：A black hole X-ray binary (BHXRB) spends its lifetime in the quiescent state with the dim radiation. It will emit broad-band energy spectra from radio to gamma-rays, when being triggered to an outburst, due to the instability in the accretion flow. Timing and spectral properties of the emission have convincingly shown the contributions from both the accretion flows and the relativistic ejections (jets). However, the evolution of the accretion-ejection during the outburst still remains unclear. In this talk, I will firstly review the outburst of the BHXRB from the observational and theoretical point of view. Then, I will introduce our recent studies on (i) the dynamical evolution of the hot accretion flow (i.e., the outflowing corona); (ii) the formation of a magnetically arrested disk (MAD). These studies will help us better understand the BH accretion physics, and the connection between the accretion-ejection.

　　报告时间：2023年5月5日（周五）10:00

　　报告地点：仙林园区2-311会议室

欢迎大家参加！