Cosmological Constraints on Scalar Field Dark Matter. (arXiv:2004.06495v1 [astro-ph.CO])
<a href="http://arxiv.org/find/astro-ph/1/au:+Escobal_A/0/1/0/all/0/1">A. A. Escobal</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Jesus_J/0/1/0/all/0/1">J. F. Jesus</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pereira_S/0/1/0/all/0/1">S. H. Pereira</a>
This paper aims to put constraints on the parameters of the Scalar Field Dark
Matter (SFDM) model, when dark matter is described by a free real scalar field
filling the whole Universe, plus a cosmological constant term. By using a
compilation of 51 $H(z)$ data and 1048 Supernovae data from Panteon, a lower
limit for the mass of the scalar field was obtained, $m geq 5.1times 10^{-34}
$eV and $H_0=69.5^{+2.0}_{-2.1}text{ km s}^{-1}text{Mpc}^{-1}$. Also, the
present dark matter density parameter was obtained as $Omega_phi =
0.230^{+0.033}_{-0.031}$ at $2sigma$ confidence level. The results are in good
agreement to standard model of cosmology, showing that SFDM model is viable in
describing the dark matter content of the universe.
This paper aims to put constraints on the parameters of the Scalar Field Dark
Matter (SFDM) model, when dark matter is described by a free real scalar field
filling the whole Universe, plus a cosmological constant term. By using a
compilation of 51 $H(z)$ data and 1048 Supernovae data from Panteon, a lower
limit for the mass of the scalar field was obtained, $m geq 5.1times 10^{-34}
$eV and $H_0=69.5^{+2.0}_{-2.1}text{ km s}^{-1}text{Mpc}^{-1}$. Also, the
present dark matter density parameter was obtained as $Omega_phi =
0.230^{+0.033}_{-0.031}$ at $2sigma$ confidence level. The results are in good
agreement to standard model of cosmology, showing that SFDM model is viable in
describing the dark matter content of the universe.
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