fast_separatrix

kerrgeopy.constants.fast_separatrix(a, grid_spacing=0.01)

Constructs a faster separatrix function for a given value of \(a\) by interpolating over a grid of \(e\) and \(x\) values.

Parameters:

• a (double) – dimensionless spin of the black hole

• grid_spacing (double, optional) – spacing of the grid over which to interpolate, defaults to 0.01

Returns:

interpolated function of e and x

Return type:

scipy.interpolate.RectBivariateSpline