galpy.orbit.Orbit.TrTp

Orbit.TrTp(pot=None, **kwargs)

NAME:

TrTp

PURPOSE:

the ‘ratio’ between the radial and azimuthal period Tr/Tphi*pi

INPUT:

pot - potential

type= (‘adiabatic’) type of actionAngle module to use

1. ‘adiabatic’
2. ‘staeckel’
3. ‘isochroneApprox’
4. ‘spherical’

+actionAngle module setup kwargs

OUTPUT:

Tr/Tp*pi

HISTORY:

2010-11-30 - Written - Bovy (NYU)

2013-11-27 - Re-written using new actionAngle modules - Bovy (IAS)