phi_frequency#

kerrgeopy.frequencies.phi_frequency(a, p, e, x, constants=None, upsilon_r=None, upsilon_theta=None)[source]#

Computes the frequency of motion in phi in Mino time

Parameters:

  • a (double) – dimensionless spin of the black hole (must satisfy -1 < a < 1)

  • p (double) – orbital semi-latus rectum

  • e (double) – orbital eccentricity (must satisfy 0 <= e < 1)

  • x (double) – cosine of the orbital inclination (must satisfy 0 < x^2 <= 1)

  • constants (tuple(double, double, double), optional) – dimensionless constants of motion for the orbit can be passed in to speed computation if they are already known

  • upsilon_r (double, optional) – Mino frequency of motion in r can be passed in to speed computation if it is already known

  • upsilon_theta (double, optional) – Mino frequency of motion in theta can be passed in to speed computation if it is already known

Return type:

double