Accretion Onto a Charged Higher-Dimensional Black Hole

Abstract

This paper deals with the steady-state polytropic fluid accretion onto a higher-dimensional Reissner-Nordstr$\ddot{o}$m black hole. We formulate the generalized mass flux conservation equation, energy flux conservation and relativistic Bernoulli equation to discuss the accretion process. The critical accretion is investigated by finding critical radius, critical sound velocity and critical flow velocity. We also explore gas compression and temperature profiles to analyze the asymptotic behavior. It is found that the results for Schwarzschild black hole are recovered when $q=0$ in four dimensions. We conclude that accretion process in higher dimensions becomes slower in the presence of charge.

arXiv comment18 pages, 2 figures, accepted for publication in EPJC

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• Gyroscope precession frequency analysis of a five dimensional charged rotating Kaluza-Klein black hole
• Constraints from accretion onto a Tangherlini-Reissner-Nordstrom black hole
• Spherical accretion onto higher-dimensional Reissner-Nordström Black Hole