galpy.potential.vesc¶
- galpy.potential.vesc(Pot, R, t=0.0)[source]¶
NAME:
vesc
PURPOSE:
calculate the escape velocity at R for potential Pot
INPUT:
Pot - Potential instances or list thereof
R - Galactocentric radius (can be Quantity)
t - time (optional; can be Quantity)
OUTPUT:
escape velocity
HISTORY:
2011-10-09 - Written - Bovy (IAS)