Influence of quantum correction on black hole shadows, photon rings, and lensing rings  

作　　者：Jun Peng Minyong Guo Xing-Hui Feng 彭俊;郭敏勇;冯星辉(Van Swinderen Institute,University of Groningen,9747 AG Groningen,The Netherlands;Center for High Energy Physics,Peking University,Beijing 100871,China;Center for Joint Quantum Studies and Department of Physics,School of Science,Tianjin University,Tianjin 300350,China)

机构地区：[1]Van Swinderen Institute,University of Groningen,9747 AG Groningen,The Netherlands [2]Center for High Energy Physics,Peking University,Beijing 100871,China [3]Center for Joint Quantum Studies and Department of Physics,School of Science,Tianjin University,Tianjin 300350,China

出　　处：《Chinese Physics C》2021年第8期206-212,共7页中国物理C（英文版）

基　　金：J.P.is supported by the China Scholarship Council.M.G.is supported by National Natural Science Foundation of China(NSFC)(11947210);funded by China Postdoctoral Science Foundation(2019M660278);X.H.F.is supported by NSFC(11905157,11935009)。

摘　　要：We calculate photon sphere r_(ph) and critical curve b_(c) for a quantum corrected Schwarzschild black hole,finding that they violate universal inequalities proved for asymptotically flat black holes that satisfy the null energy condition in the framework of Einstein gravity.This violation seems to be a common phenomenon when considering quantum modification of Einstein gravity.Furthermore,we study the shadows,lensing rings,and photon rings in the quantum corrected Schwarzschild black hole.The violation leads to a larger bright lensing ring in the observational appearance of the thin disk emission near the black hole compared with the classical Schwarzschild black hole.Our analysis may provide observational evidence for the quantum effect of general relativity.

关 键 词：black hole shadow photon ring quantum correction 

分 类 号：P145.8[天文地球—天体物理]