galpy.df.sphericaldf.sigmar

sphericaldf.sigmar(r)

Calculate the radial velocity dispersion at radius r.

Parameters:

r (float) – Spherical radius at which to calculate the radial velocity dispersion.

Returns:

The radial velocity dispersion at radius r.

Return type:

float or Quantity

Notes

• 2020-09-04 - Written - Bovy (UofT)