Shadow and gravitational weak lensing around a quantum-corrected black hole surrounded by plasma  

作　　者：Mirzabek Alloqulov Yokubjon Isaqjonov Sanjar Shaymatov Abdul Jawad 

机构地区：[1]University of Tashkent for Applied Sciences,Str.Gavhar 1,Tashkent 100149,Uzbekistan [2]Shahrisabz State Pedagogical Institute,Shahrisabz Str.10,Shahrisabz 181301,Uzbekistan [3]Tashkent State Technical University,Tashkent 100095,Uzbekistan [4]Samarkand State University,University Avenue 15,140104 Samarkand,Uzbekistan [5]Western Caspian University,Baku AZ1001,Azerbaijan [6]Institute for Theoretical Physics and Cosmology,Zhejiang University of Technology,Hangzhou 310023,China [7]Department of Mathematics,COMSATS University Islamabad,Lahore Campus,Lahore-54000,Pakistan

出　　处：《Chinese Physics C》2025年第4期230-240,共11页中国物理C(英文版)

基　　金：Supported by the National Natural Science Foundation of China(11675143);the National Key Research and Development Program of China(2020YFC2201503)。

摘　　要：In this study,we investigate the optical properties of a quantum-corrected black hole(BH)in loop quantum gravity surrounded by a plasma medium.First,we determine the photon and shadow radii resulting from quantum corrections and the plasma medium in the environment surrounding a quantum-corrected BH.Our findings indicate that the photon sphere and BH shadow radii decrease owing to the quantum correction parameterα,which acts as a repulsive gravitational charge.Further,we investigate the gravitational weak lensing by applying the general formalism used to model the deflection angle of the light traveling around the quantum-corrected BH within the plasma medium.We show,in conjunction with the fact that the combined effects of the quantum correction and non-uniform plasma frequency parameter can decrease the deflection angle,that the light traveling through the uniform plasma can be strongly deflected than the non-uniform plasma environment surrounding the quantum-corrected BH.Finally,we examine the magnification of the lensed image brightness under the effect of the quantum correction parameterα,including the uniform and non-uniform plasma effects.

关 键 词：quantum-corrected black hole gravitational weak lensing photon motion SHADOW 

分 类 号：P145.8[天文地球—天体物理]