galpy.df.quasiisothermaldf.estimate_hr

quasiisothermaldf.estimate_hr(R, z=0.0, dR=1e-08, **kwargs)

NAME:

estimate_hr

PURPOSE:

estimate the exponential scale length at R

INPUT:

R - Galactocentric radius

z= height (default: 0 pc)

dR- range in R to use

density kwargs

OUTPUT:

estimated hR

HISTORY:

2012-09-11 - Written - Bovy (IAS) 2013-01-28 - Re-written - Bovy