Black hole X-ray binaries

主讲人 (Speaker): 
游贝
主讲人单位 (Speaker's Institute): 
武汉大学
邀请人 (Invited by): 
申荣锋
时间 (Time): 
星期三, 2018/07/11 - 15:00 to 16:00
地点 (Location): 
珠海校区海滨红楼17栋107 (Rm 107, Red House 17)
摘要 (Abstract): 

Black hole X-ray binaries are two-body systems, which are quite active and always attract great attention from astronomer over last century. In this binary system, the primary object is believed to be stellar-mass black hole, while the companion star are thought to be normal stellar or white dwarf. The black hole and companion star orbit around each other, and the matter from the companion is accreted onto BH, releasing gravitational energy and radiate in multi-bands from optical to hard X-ray, even Gamma ray. Moreover, Such binary system are observed to undergo transition of the flux from quiescent state to burst state. In the burst state, the luminosity of the system in X-ray band is at least 1000 times brighter than our Sun's radiation. Studying black hole X-ray binaries system will help us not only test Einstein's general relativity theory, but also better understand the magneto-hydrodynamics (MHD) in the nature. In this presentation, I will mainly talk about the spectral and timing properties of black hole X-ray binaries.

主讲人简介 (Speaker's CV): 
武汉大学研究员(2014年至今)。博士毕业于上海天文台(2014),导师为曹新伍研究员。曾获得博士研究生国家奖学金(2013)。2014年10月至2017年10月,任波兰哥白尼天文中心博士后。主要研究课题:黑洞吸积物理,活动星系核宽波段拟合,黑洞自旋测量,黑洞双星以及活动星系核外流,黑洞双星准周期振荡。