Spherical winds and accretion in general relativity

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astronomical Models, Relativity, Shock Wave Propagation, Stellar Winds, Adiabatic Flow, Black Holes (Astronomy), Equations Of State, Radial Flow, Relativistic Effects, Stellar Evolution, Stellar Models

Scientific paper

Analytic general solutions are obtained for time-independent, adiabatic, spherically symmetric wind and accretion flows in Schwarzschild coordinates. Various equations of state applicable for both relativistic and nonrelativistic temperatures are considered. The general solution is shown to strongly resemble the nonrelativistic stellar wind solution. Finally, shock transitions in special relativity are briefly considered, and it is shown how they can be fitted onto the full solution to accommodate a broader class of boundary conditions.

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