Black Holes and Neutron Stars in our Galaxy as Laboratories for Strong Gravity
发布时间：2014-02-17 | 【 大 中 小 】
发布时间：2014-02-17 | 【 大 中 小 】 | 【打印】 【关闭】
Speaker: Dr. Tomaso Belloni (INAF - Osservatorio Astronomico di Brera, Italy)
Title: Black Holes and Neutron Stars in our Galaxy as Laboratories for Strong Gravity.
Time: 2:00PM, Monday (Feb 17th)
Location: Middle conference room
Abstract:
Binary systems containing a black hole or a neutron star offer the best possibility to test prediction of General Relativity in the strong field regime. The plasma stripped from the non-degenerate companion star reaches the space time in the immediate vicinity of the compact object and releases strong X-ray emission. The spectral and variability properties of this emission contain the signatures of predicted effects such as the presence of an innermost stable orbit and black hole spin. I discuss the current observational status with particular emphasis onto sub-second time variability, which constitutes the most direct measurement of the properties of the plasma accreting onto a collapsed star.
