hmf.cosmology.growth_factor.Carroll1992

class hmf.cosmology.growth_factor.Carroll1992(*args, **kwargs)[source]

Analytic approximation for the growth factor from Carroll et al. 1992.

Adapted from chomp project.

Parameters

  • cosmo (astropy.cosmology.FLRW instance) – Cosmological model.

  • **model_parameters (unpack-dict) –

    Parameters specific to this model. In this case, available parameters are as follows.To see their default values, check the _defaults class attribute.

    dz

    Step-size for redshift spline

    zmax

    Maximum redshift of spline. Only used for growth_factor_fn(), when inverse=True.

Methods

__init__(*args, **kwargs)

Initialize self.

get_models()

Get a dictionary of all implemented models for this component.

growth_factor(z)

The growth factor, \(d(a) = D^+(a)/D^+(a=1)\).

growth_factor_fn([zmin, inverse])

Return the growth factor as a callable function.

growth_rate(z)

Growth rate, dln(d)/dln(a) from Hamilton 2000 eq.

growth_rate_fn([zmin])

Growth rate, dln(d)/dln(a) from Hamilton 2000 eq.