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5D black holes in Einstein-Gauss-Bonnet gravity with a background of modified Chaplygin gas

Research paper by Xiang-Qian Li, Bo Chen, Li-li Xing

Indexed on: 27 Aug '19Published on: 23 Aug '19Published in: arXiv - General Relativity and Quantum Cosmology



Abstract

Supposing the existence of modified Chaplygin gas with the equation of state $p=A\rho-B/\rho^\beta$ as a cosmic background, we obtain a static spherically-symmetric black hole solution to the Einstein-Gauss-Bonnet gravitational equations in 5D spacetime. The spacetime structure of the obtained black hole solution is analyzed, also the related black hole properties are studied by calculating the thermodynamical quantities. During this process, effects of the Gauss-Bonnet coupling constant and the modified Chaplygin gas parameters on black hole solution, as well as on its thermodynamical properties are discussed. At the end, we study the quantum tunneling of scalar particles and the propagating of scalar waves within the background of modified Chaplygin gas. The study shows that the system is stable under scalar perturbations and the Hawking radiation could stop at some point, leaving an extremal black hole as remnant for evaporation.