Comparison of Two Stationary Spherical Accretion Models

Details Comparison of Two Stationary Spherical Accretion Models Comparison of Two Stationary Spherical Accretion Models

2004-04-06

arxiv.org/abs/gr-qc/0404019v1

Acta Phys.Polon. B36 (2005) 1951-1962

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, 9 figures

Scientific paper

The general relativistic accretion onto a black hole is investigated in which the motion is steady and spherically symmetrical, the gas being at rest at infinity. Two models with different equations of state are compared. Numerical calculations show that the predictions of the models are similar in most aspects. In the ultrarelativistic regime the allowed band of the asymptotic speed of sound and the mass accretion rate can be markedly different.

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