TL;DR
This paper demonstrates that the subsonic wind accretion rate onto a point mass in uniform gas is independent of wind velocity and matches the spherical Bondi rate for an adiabatic index of 5/3, supported by numerical calculations.
Contribution
It shows the velocity independence of subsonic wind accretion rate and provides accurate numerical validation of this result.
Findings
Accretion rate equals the Bondi rate for adiabatic index 5/3.
Accretion rate is independent of wind velocity in subsonic regime.
Numerical calculations confirm the theoretical prediction.
Abstract
The rate of subsonic wind accretion (accretion on a point Newtonian mass moving through uniform gas) is shown to be independent of the wind velocity and equal to the spherical Bondi rate -- for the adiabatic index equal to 5/3. A (very accurate) numerical calculation of the accretion flow, confirming this result, is also presented.
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