Selfgravitation in a general-relativistic accretion of steady fluids
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The selfgravity of an infalling gas can alter significantly the accretion of gases. In the case of spherically symmetric steady flows of polytropic perfect fluids the mass accretion rate achieves maximal value when the mass of the fluid is 1/3 of the total mass. There are two weakly accreting regimes, one over-abundant and the other poor in fluid content. The analysis within the newtonian gravity suggests that selfgravitating fluids can be unstable, in contrast to the accretion of test fluids.
Typos corrected. Talk given at the 42nd Karpacz Winter School of Theoretical Physics, Ladek, Poland February 2006 on Current Mathematical Topics in Gravitation and Cosmology
Typos corrected. Talk given at the 42nd Karpacz Winter School of Theoretical Physics, Ladek, Poland February 2006 on Current Mathematical Topics in Gravitation and Cosmology