General relativistic accretion with backreaction

Details General relativistic accretion with backreaction General relativistic accretion with backreaction

2006-12-29

arxiv.org/abs/gr-qc/0612184v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Submitted to MG11 conference proceedings

Scientific paper

The spherically symmetric steady accretion of polytropic perfect fluids onto a black hole is the simplest flow model that can demonstrate the effects of backreaction. Backreaction keeps intact most of the characteristics of the sonic point. For any such system the mass accretion rate achieves maximal value when the mass of the fluid is 1/3 of the total mass. Fixing the total mass of the system, one observes the existence of two weakly accreting regimes, one overabundant and the other poor in fluid content.

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