Source code for autogalaxy.galaxy.redshift
[docs]class Redshift(float):
"""
Class used when assigning a redshift to a `Galaxy` object.
This object is only required when making the `Redshift` of the `Galaxy` a free parameter in a model that
is fitted.
This is because **PyAutoFit** (which handles model-fitting), requires all parameters to be a Python class.
The `Redshift` object does not need to be used for general **PyAutoGalaxy** use.
Examples
--------
import autofit as af
import autogalaxy as ag
bulge = af.Model(ag.lp.Sersic)
redshift = af.Model(ag.Redshift)
redshift.redshift = af.UniformPrior(lower_limit=0.0, upper_limit=2.0)
galaxy = af.Model(ag.Galaxy, redshift=redshift, bulge=bulge)
model = af.Collection(galaxies=af.Collection(galaxy=galaxy))
"""
def __new__(cls, redshift):
# noinspection PyArgumentList
return float.__new__(cls, redshift)
def __init__(self, redshift):
float.__init__(redshift)