Abstract:
We investigate the accretion process onto the charged black hole surrounded by perfect fluid radiation field in Rastall gravity. To determine the analytical solution to problem of stationary, spherically symmetric accretion of a polytropic fluid, we formulated the generalized relations for mass accretion rate M, critical horizon radius and some other flow parameters. Furthermore, using polytropic equation of state, we have investigated the location of critical points, polytropic gas compression ratios and temperature profiles in detail. It has been found critical points lies inside the inner horizon of the Rastall gravity black hole. The location of critical points has been compared with case of Schwarzschild black hole in which critical points lies out side the horizon. We observed that in the accretion process, charge Q and the charged black hole surrounded by perfect fluid radiation field ???? in Rastall gravity are the most important factors. The results can be reduced to the cases Schwarzschild black hole and charged black hole under some limits.
Page(s):
23-23
DOI:
DOI not available
Published:
Journal: Abstract Book on Global Science Technology and Management Conference, Volume: 0, Issue: 0, Year: 2023