luminosity_distance

astropy.cosmology.funcs.luminosity_distance(z, cosmo=None)[source] [edit on github]

Luminosity distance in Mpc at redshift z.

This is the distance to use when converting between the bolometric flux from an object at redshift z and its bolometric luminosity.

Parameters:

z : array_like

Input redshifts.

Returns:

lumdist : ndarray, or float if input scalar

Angular diameter distance at each input redshift.

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