Perfect fluid and scalar field in the Reissner-Nordstrom metric

Abstract

We describe spherically symmetric steady-state accretion of perfect fluid in the Reissner-Nordstrom metric. We present analytic solutions for accretion of a fluid with the linear equations of state and of the Chaplygin gas. It is also shown that, under reasonable physical conditions, there is no steady-state accretion of a perfect fluid onto a Reissner-Nordstrom naked singularity. Instead, a static atmosphere of fluid is formed. We discuss a possibility of violation of the third law of black hole thermodynamics for a phantom fluid accretion.

10 pages, 5 figures; title changed, results unchanged

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• k-Essence, superluminal propagation, causality and emergent geometry
• Weak Cosmic Censorship: As Strong as Ever
• Ultra-hard fluid and scalar field in the Kerr-Newman metric
• Passage of radiation through wormholes
• Accretion process onto super-spinning objects
• Physics of the interior of a black hole with an exotic scalar matter

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