galpy.potential.planarAxiPotential.vcirc¶
-
Potential.
vcirc
(R, phi=None)¶ NAME:
vcircPURPOSE:
calculate the circular velocity at R in this potentialINPUT:
R - Galactocentric radius (can be Quantity)
phi= (None) azimuth to use for non-axisymmetric potentials
OUTPUT:
circular rotation velocityHISTORY:
2011-10-09 - Written - Bovy (IAS)2016-06-15 - Added phi= keyword for non-axisymmetric potential - Bovy (UofT)