Gravitational quasi-normal modes of charged spherically symmetric black holes surrounded by quintessence fluid in Rastall gravity  

作　　者：Tongzheng Wang Yuhao Cui Kai Lin 王同征;崔宇昊;林恺

机构地区：[1]School of Geophysics and Geomatics,China University of Geosciences,Wuhan 430074,China

出　　处：《Chinese Physics B》2025年第3期278-289,共12页中国物理B(英文版)

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.42230207);the Fundamental Research Funds for the Central Universities,China University of Geosciences(Wuhan)(Grant No.G1323523064)。

摘　　要：We apply the WKB approximation method,matrix method,and finite difference method to study the gravitational quasi-normal modes of charged spherically symmetric black holes surrounded by quintessence fluid in Rastall gravity.By comparing the spherically symmetric spacetime metric of charged black holes surrounded by quintessence fluid in Rastall gravity with that of general relativity,we can find that the modifications to general relativity in this modified gravity theory can be described by parameters such asλ,Q,and C_(a),etc.In four-dimensional spacetime,we investigate the impact of charge Q and parameter C_(a) on the gravitational quasi-normal modes of charged black holes surrounded by quintessence field in Rastall gravity.The aim is to search for observational evidence of such black holes in astrophysical observations and,consequently,test the validity of Rastall theory.In five-dimensional(5D)spacetime,we study the impact of the parameter C_(a) on the gravitational quasi-normal modes of Rastall black holes surrounded by quintessence field and summarize the corresponding variation patterns.

关 键 词：quasi-normal modes Rastall gravity HIGHER-DIMENSIONAL 

分 类 号：P14[天文地球—天体物理]