# Triaxial Gaussian potential¶

class galpy.potential.TriaxialGaussianPotential(amp=1.0, sigma=5.0, b=1.0, c=1.0, zvec=None, pa=None, glorder=50, normalize=False, ro=None, vo=None)[source]

Potential of a triaxial Gaussian (Emsellem et al. 1994):

$\rho(x,y,z) = \frac{\mathrm{amp}}{(2\pi\,\sigma)^{3/2}\,b\,c}\,e^{-\frac{m^2}{2\sigma^2}}$

where $$\mathrm{amp} = GM$$ is the total mass and $$m^2 = x^2+y^2/b^2+z^2/c^2$$.

__init__(amp=1.0, sigma=5.0, b=1.0, c=1.0, zvec=None, pa=None, glorder=50, normalize=False, ro=None, vo=None)[source]

NAME:

__init__

PURPOSE:

initialize a Gaussian potential

INPUT:

amp - amplitude to be applied to the potential (default: 1); can be a Quantity with units of mass or Gxmass

sigma - Gaussian dispersion scale (can be Quantity)

b - y-to-x axis ratio of the density

c - z-to-x axis ratio of the density

zvec= (None) If set, a unit vector that corresponds to the z axis

pa= (None) If set, the position angle of the x axis (rad or Quantity)

glorder= (50) if set, compute the relevant force and potential integrals with Gaussian quadrature of this order

ro=, vo= distance and velocity scales for translation into internal units (default from configuration file)

OUTPUT:

(none)

HISTORY:

2020-08-18 - Started - Bovy (UofT)