理论物理与天体物理研究所系列讲座之275:Testing strong gravity using X-ray reflection spectroscopy

日期: 
2017/12/14
People: 
Prof. Cosimo Bambi
Institute: 
复旦大学(FUDAN)

Title: Testing strong gravity using X-ray reflection spectroscopy

Speaker: Professor Cosimo Bambi(中组部”千人计划“青年项目入选者、谢希德特聘教授)
Institute: 复旦大学(FUDAN)
Time: 2017.12.14(Thursday) 14:30
Place: Physics Building 573, Haiyun Campus, Xiamen University
Abstract: The spacetime metric around astrophysical black holes should be well approximated by the Kerr solution of Einstein's gravity, but macroscopic deviations from the Kerr metric are predicted by a number of alternative theories of gravity. X-ray reflection spectroscopy is potentially a powerful tool to probe the strong gravity region around black holes and test the Kerr hypothesis. In this talk, I will present the Xspec reflection model relxill_nk and current constraints on possible deviations from the Kerr background obtained from XMM-Newton and NuSTAR data.