astropy:docs

H

astropy.cosmology.H(*args, **kwargs)[source] [edit on github]

Deprecated since version 0.4: The H function is deprecated and may be removed in a future version. Use <Cosmology object>.H instead.

Hubble parameter (km/s/Mpc) at redshift z.

Parameters:

z : array_like

Input redshifts.

Returns:

H : Quantity

Hubble parameter at each input redshift.

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