galpy.util
galpy.util.conversion.time_in_Gyr
galpy.util.coords
galpy.util.conversion.
velocity_in_kpcGyr
NAME:
PURPOSE:
convert a velocity to kpc/Gyr
INPUT:
vo - velocity unit in km/s ro - length unit in kpc
vo - velocity unit in km/s
ro - length unit in kpc
OUTPUT:
conversion from units where vo=1. at ro=1.
HISTORY:
2014-12-19 - Written - Bovy (IAS)