Accretion onto Charged Black Holes in Einstein and Massive Theories of Gravity

作     者：Abdul Jawad Shahid Chaudhary 

作者机构：Department of MathematicsCOMSATS UniversityIslamabadLahore Campus-54000Pakistan Department of MathematicsSharif College of Engineering and TechnologyLahore-54000Pakistan 

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

年 卷 期：2019年第71卷第6期

页      面：702-710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 Higher Education Commission(HEC)under Grant No.9290/Balochistan/NRPU/R&D/HEC/2017 

主　　题：accretion black holes Einstein gravity massive gravity 

摘      要：The accretion process is being investigated onto some important black holes such as Born-Infeld-AdS black hole, non-linear charged black hole solution in AdS space-time and Einstein-Yang-Mills massive gravity in the presence of Born-Infeld nonlinear electrodynamics. We find out the relations of radial velocity, energy density and change of mass for mention black holes and analyze their behavior graphically for different values of equation of state parameters ω.We also examine the relations for critical speed for these black holes. It is observed that for different state parameters different fluids exhibit different evolutions in black holes backgrounds. The energy density of some fluids is negative or positive near the black hole while other fluids become cause to increase or decrease in black hole mass.