报告题目:Testing Einstein’s general relativity using x - ray reflection spectrum

报告人：周彪

报告时间：2021年5月10日（周一）上午10:00

报告地点：浙江工业大学理学楼二楼师生活动中心

摘要 (Abstract): After about one hundred years since Einstein formulated his theory of general relativity, the theory has passed various experimental tests. But these experiments can only prove the validity of general relativity in weak gravitational field. Testing the validity of the theory in the strong gravity regime has become new frontier nowadays. Astrophysical black holes are the ideal laboratory for testing general relativity in strong gravity regime. The X-ray reflection spectrum of the accretion disk of a black hole offers a promising way to probe the spacetime metric around a black hole. To test the theory in this way, we must calculate the X-ray reflection spectrum of an adopted black hole spacetime metric and then compare it with observations. Using the formalism of the transfer function, the calculation of the X-ray reflection spectrum can be divided into two parts: the calculation of the transfer function and the calculation of the local spectrum at any emission point in the disk. In this talk, I will introduce how our code for calculating the transfer function is formulated and how the components of the code work in detail.

报告人简介(Bio) : 周彪，复旦大学物理系2019级博士生。

邀   请   人  ： 刘诚