hierarc.Likelihood.BAOLikelihood package¶

Submodules¶

class hierarc.Likelihood.BAOLikelihood.bao_likelihood.BAOLikelihood(sample_name='DESI_DR2', **kwargs_bao_likelihood)[source]¶

Bases: object

BAO likelihood.This class supports custom likelihoods as well as likelihoods from the DESI BAO files.

log_likelihood(cosmo, rd=None)[source]¶

Parameters:: cosmo – instance of a class to compute angular diameter distances on arrays
Returns:: log likelihood of the data given the specified cosmology

class hierarc.Likelihood.BAOLikelihood.bao_likelihood_custom.CustomBAOLikelihood(z, d, distance_type, cov)[source]¶

Bases: object

Class method for an arbitrary BAO measurements.

Distances measurements (scaled by rs) and the covariance matrix must be provided in the constructor. The likelihood is assumed to be Gaussian.

log_likelihood_bao(cosmo, rd)[source]¶

Parameters:

Returns:

log likelihood of the data given the specified cosmology

class hierarc.Likelihood.BAOLikelihood.desi_dr2.DESIDR2Data[source]¶

Bases: object

This class collect the data from teh DESI DR2 analysis presented in DESI collaboration et al. 2025.

The data covariances that are stored in hierArc are originally from DESI DR2.

If you make use of these products, please cite DESI collaboration et al. 2025.