carter_constant#

kerrgeopy.constants.carter_constant(a, p, e, x, E=None, L=None)[source]#

Computes the dimensionless carter constant of a bound orbit with the given parameters

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)

  • E (double, optional) – dimensionless energy of the orbit can be passed in to speed computation if it is already known

  • L (double, optional) – dimensionless angular momentum of the orbit can be passed in to speed computation if it is already known

Return type:

double