galpy.df.sphericaldf.vmomentdensity¶
-
sphericaldf.
vmomentdensity
(r, n, m, **kwargs)[source]¶ NAME:
vmomentdensityPURPOSE:
calculate an arbitrary moment of the velocity distribution at r times the densityINPUT:
r - spherical radius at which to calculate the moment
n - vr^n, where vr = v x cos eta
m - vt^m, where vt = v x sin eta
OUTPUT:
<vr^n vt^m x density> at rHISTORY:
2020-09-04 - Written - Bovy (UofT)