hmfast.halos.concentration.ConstantConcentration

class hmfast.halos.concentration.ConstantConcentration(c)[source]

Constant concentration-mass relation.

Agnostic to the choice of mass definition.

The concentration parameter \(c_\Delta\) is fixed to a user-specified value for all halos.

Methods

c_delta(cosmology, m, z[, mass_def])

Returns a constant value for the concentration parameter, broadcast to the shape of the input masses and redshifts.

c_delta(cosmology, m, z, mass_def=<hmfast.halos.massdef.MassDefinition object>)[source]

Returns a constant value for the concentration parameter, broadcast to the shape of the input masses and redshifts.

Parameters:

cosmologyCosmology: Cosmology used to evaluate the concentration relation.
marray-like: Halo masses in physical \(M_\odot\).
zarray-like: Redshifts.
mass_defMassDefinition, optional: Target halo mass definition. Included for API consistency.

Returns:

float or array-like: Concentration values with shape \((N_m, N_z)\), where singleton dimensions get squeezed before return.