# galpy.df.diskdf.asymmetricdrift¶

diskdf.asymmetricdrift(R)[source]

NAME:

asymmetricdrift

PURPOSE:

estimate the asymmetric drift (vc-mean-vphi) from an approximation to the Jeans equation

INPUT:

R - radius at which to calculate the asymmetric drift (can be Quantity)

OUTPUT:

asymmetric drift at R

HISTORY:

2011-04-02 - Written - Bovy (NYU)