galpy.potential.lindbladR

galpy.potential.lindbladR(Pot, OmegaP, m=2, t=0.0, **kwargs)[source]

NAME:

lindbladR

PURPOSE:

calculate the radius of a Lindblad resonance

INPUT:

Pot - Potential instance or list of such instances

OmegaP - pattern speed (can be Quantity)

m= order of the resonance (as in m(O-Op)=kappa (negative m for outer)
use m=’corotation’ for corotation

+scipy.optimize.brentq xtol,rtol,maxiter kwargs

t - time (optional; can be Quantity)

OUTPUT:

radius of Linblad resonance, None if there is no resonance

HISTORY:

2011-10-09 - Written - Bovy (IAS)