Escape probability for isotropic emitters near Kerr black hole with astrometric

作     者：Yu-Xuan Han Qing-Hua Zhu Qing-Guo Huang 

作者机构：CAS Key Laboratory of Theoretical PhysicsInstitute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China School of Physical SciencesUniversity of Chinese Academy of SciencesNo.19A Yuquan RoadBeijing 100049China Department of PhysicsChongqing UniversityChongqing 401331China School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUCASHangzhou 310024China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2024年第76卷第5期

页      面：128-133页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：supported by the National Key Research and Development Program of China, Grant No. 2020YFC2201502 by grants from the National Natural Science Foundation of China (Grant No. 11991052) the Key Research Program of Frontier Sciences, CAS, Grant No. ZDBS-LY-7009 

主　　题：Kerr black hole photon escape probability isotropic emitters 

摘      要：The paper investigates the escape probability for isotropic emitters near a Kerr black *** propose a new approach to obtain the escape probability in a general manner,going beyond previous case-by-case *** approach is based on studies of the black hole shadow with astrometric observable and can be applied to emitters with an arbitrary 4-velocities and locations,even to the emitters outside of the equatorial *** also consider representative examples illustrating how escape probabilities vary with distance,velocity,and inclination ***,this new approach provides an effective method for studying escape probabilities near Kerr black holes.