galpy.potential.mass¶

galpy.potential.mass(Pot, R, z=None, t=0.0, forceint=False)[source]

NAME:

mass

PURPOSE:

convenience function to evaluate a possible sum of masses

INPUT:

Pot - potential or list of potentials (dissipative forces in such a list are ignored)

R - cylindrical Galactocentric distance (can be Quantity)

z= (None) vertical height up to which to integrate (can be Quantity)

t - time (can be Quantity)

forceint= if True, calculate the mass through integration of the density, even if an explicit expression for the mass exists

OUTPUT:

Mass enclosed within the spherical shell with radius R if z is None else mass in the slab <R and between -z and z

HISTORY:

2021-02-07 - Written - Bovy (UofT)

2021-03-15 - Changed to integrate to spherical shell for z is None slab otherwise - Bovy (UofT)