Observational constraints on tensor perturbations in cosmological models with dynamical dark energy

Abstract

We constrain the contribution of tensor-mode perturbations with free $n_t$ in the models with dynamical dark energy with the barotropic equation of state using Planck-2015 data on CMB anisotropy, polarization and lensing, BICEP2/Keck Array data on B-mode polarization, power spectrum of galaxies from WiggleZ and SN Ia data from the JLA compilation. We also investigate the uncertainties of reconstructed potential of the scalar field dark energy.

arXiv comment4 pages, 2 figures, 1 table. Presented at the 3rd Conference of the Polish Society on Relativity, Krakow, Poland, September 25-29, 2016