SV.mdot_r_exponent
The exponent \(\lambda\) for the mass loss rate per unit area as defined in the Shlosman Vitelo model.
\[\frac{\delta\dot{m}}{\delta A} \propto \dot{m}_{wind} r_o^{\lambda} cos(\theta(r_o))\]
Equation (4) Shlosman & Vitelo,ApJ,1993,409,372.