@Article{NunesYadaJesuBern:2020:CoPaAn,
author = "Nunes, Rafael da Costa and Yadav, Santosh K. and Jesus, J. F. and
Bernui, Armando",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {BITS
Pilani} and {Universidade Estadual Paulista (UNESP)} and
{Observatorio Nacional (ON)}",
title = "Cosmological parameter analyses using transversal BAO data",
journal = "Monthly Notices of the Royal Astronomical Society",
year = "2020",
volume = "497",
number = "2",
pages = "2133--2141",
month = "Sept.",
keywords = "cosmological parameters, dark energy.",
abstract = "We investigate observational constraints on cosmological
parameters combining 15 measurements of the transversal BAO scale
(obtained free of any fiducial cosmology) with Planck-CMB data to
explore the parametric space of some cosmological models. We
investigate how much Planck + transversal BAO data can constraint
the minimum Lambda cold dark matter (Lambda CDM) model, and
extensions, including neutrinos mass scale M-nu, and the
possibility for a dynamical dark energy (DE) scenario. Assuming
the Lambda CDM cosmology, we find H-0 = 69.23 +/- 0.50 km s(-1)
Mpc(-1), M-nu < 0.11 eV, and r(drag) = 147.59 +/- 0.26 Mpc (the
sound horizon at drag epoch) from Planck + transversal BAO data.
When assuming a dynamical DE cosmology, we find that the inclusion
of the BAO data can indeed break the degeneracy of the DE free
parameters, improving the constraints on the full parameter space
significantly. We note that the model is compatible with local
measurements of H-0 and there is no tension on H-0 estimates in
this dynamical DE context. Also, we discuss constraints and
consequences from a joint analysis with the local H-0 measurement
from SH0ES. Finally, we perform a model-independent analysis for
the deceleration parameter, q(z), using only information from
transversal BAO data.",
doi = "10.1093/mnras/staa2036",
url = "http://dx.doi.org/10.1093/mnras/staa2036",
issn = "0035-8711 and 1365-2966",
language = "en",
targetfile = "nunes_cosmological.pdf",
urlaccessdate = "01 jun. 2024"
}