LogarithmicPotential¶

class gala.potential.LogarithmicPotential(v_c, r_h, q1, q2, q3, phi=0, theta=0, psi=0, units)¶

Triaxial logarithmic potential.

\[\begin{split}\Phi(x,y,z) &= \frac{1}{2}v_{c}^2\ln((x/q_1)^2 + (y/q_2)^2 + (z/q_3)^2 + r_h^2)\\\end{split}\]

Parameters:

v_c : Quantity, numeric

Circular velocity.

r_h : Quantity, numeric

Scale radius.

q1 : numeric

Flattening in X.

q2 : numeric

Flattening in Y.

q3 : numeric

Flattening in Z.

phi : Quantity, numeric

First euler angle in the z-x-z convention.

units : UnitSystem (optional)

Set of non-reducable units that specify (at minimum) the length, mass, time, and angle units.