galpy.orbit.Orbit.TrTp¶
- Orbit.TrTp(pot=None, **kwargs)[source]¶
NAME:
TrTp
PURPOSE:
the ‘ratio’ between the radial and azimuthal period Tr/Tphi*pi
INPUT:
pot - potential
type= (‘staeckel’) type of actionAngle module to use
‘adiabatic’
‘staeckel’
‘isochroneApprox’
‘spherical’
+actionAngle module setup kwargs
OUTPUT:
Tr/Tp*pi [*input_shape]
HISTORY:
2019-02-27 - Written - Bovy (UofT)