paper

Bondi-type accretion in the Reissner-Nordström-(anti-)de Sitter spacetime

arXiv:1509.07005 · doi:10.1088/0264-9381/32/23/235008

Abstract

In this paper I study stationary, spherically symmetric accretion of fluids onto a charged black hole in the presence of the cosmological constant. For some isothermal equations of state it is possible to obtain analytic solutions. In the case of a radiation fluid I point out a connection between locations of the horizons and the sonic (critical) points. In specific cases the solutions form closed, binoculars-like trajectories in a phase diagram of the velocity vs. radius.

16 pages, 6 figures, to appear in Classical and Quantum Gravity

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