New constraints on cosmological parameters and neutrino properties using the expansion rate of the Universe to z~1.75

Abstract

We have assembled a compilation of observational Hubble parameter measurements estimated with the differential evolution of cosmic chronometers, in the redshift range 04 at 95% CL (74% CL) using the same datasets combinations. We also put competitive limits on the sum of neutrino masses, Σm_ν<0.24 eV at 68% confidence level. These results have been proven to be extremely robust to many possible systematic effects, such as the initial choice of stellar population synthesis model adopted to estimate H(z) and the progenitor-bias.

Identifiers

DOI

10.48550/arxiv.1201.6658

Citations and references