Galaxy / Plane / Tracer#
Galaxy / Plane / Tracer#
Class representing a galaxy, which is composed of attributes used for fitting hyper_galaxies (e.g. |
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A plane of galaxies where all galaxies are at the same redshift. |
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Ray-tracer for a lens system with any number of planes. |
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To treat the redshift of a galaxy as a free parameter in a model, the Redshift
object must
be used.
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.
Class used when assigning a redshift to a Galaxy object. |
By using a HyperGalaxy
, the noise-map value in the regions of the image that the galaxy is located
are increased.
This prevents over-fitting regions of the data where the model does not provide a good fit (e.g. where a high chi-squared is inferred).
By using a |