Local measurement of H0¶
Synopsis: | Prototype class for local Hubble parameter measurements |
---|---|
Author: | Jesus Torrado |
This is a simple gaussian likelihood for the latest local \(H_0\) measurements using a combination of different data.
It defines the following likelihoods
H0.riess2018a
: A legacy local measurement of \(H_0\), used in the analysis of Planck data for the Planck 2018 release. (arXiv:1801.01120)H0.riess2018b
: Updated local measurement of \(H_0\). (arXiv:1804.10655)H0.riess201903
: Riess et al. 2019 constraint (arXiv:1903.07603)
Using a different measurement¶
If you would like to use different values for the \(H_0\) constraint, as a mean and a
standard deviation, simply add the following likelihood, substituting mu_H0
and
sigma_H0
for the respective values:
likelihood:
my_H0:
external: 'lambda _self: -0.5 * (_self.provider.get_param("H0") - mu_H0)**2 / (sigma_H0)**2'
requires: ["H0"]