Galaxy / Tracer#
Galaxy / Tracer#
Galaxy and Galaxies model individual galaxies with light and mass profiles at a
given redshift. Tracer groups galaxies by redshift into planes and performs
multi-plane gravitational lensing ray-tracing, computing lensed images, convergence,
deflection angles, magnification, critical curves, and caustics.
Class representing a galaxy, which is composed of attributes used for fitting galaxies (e.g. light profiles, mass profiles, pixelizations, etc.). |
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A collection of galaxies, used to perform operations on the galaxies as a group. |
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Performs gravitational lensing ray-tracing calculations based on an input list of galaxies and a cosmology. |
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. |