.. _physics-hotHaloColdModeCoreRadii:

Cold Mode Hot Halo Mass Distributions Core Radii
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Class providing the core radius (in Mpc) for cored cold-mode hot halo density profiles. Analogous to the :galacticus-class:`hotHaloMassDistributionCoreRadiusClass` for the hot component, this sets the inner flattening radius for the cold-mode gas distribution. The core radius mayb be expressed, for example, as a fraction of a characteristic halo length scale (e.g.\ virial radius) and affects the central density and cooling rate of the cold-mode component.

**Default implementation:** ``hotHaloColdModeCoreRadiiVirialFraction``

Methods
-------

``radius`` → ``double precision``
   Return the core radius of the hot halo mass distribution.

   * ``type(treeNode), intent(inout) :: node``

.. _physics-hotHaloColdModeCoreRadiiVirialFraction:

``hotHaloColdModeCoreRadiiVirialFraction``
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Provides an implementation of the cold mode hot halo mass distribution core radius class which sets the core radius to a fraction of the virial radius.

**(Default implementation)**

**Parameters**

* ``[coreRadiusOverVirialRadius]`` (default ``0.3d0``) — The core radius in the hot halo density profile in units of the virial radius.