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Cosmological Constraints on Scalar Field Dark Matter

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arxiv 2004.06495 v1 pith:D3HPROUQ submitted 2020-04-12 astro-ph.CO gr-qc

Cosmological Constraints on Scalar Field Dark Matter

classification astro-ph.CO gr-qc
keywords darkmatterfieldscalarmodelconstraintscosmologicaldata
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 5.1\times 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 $2\sigma$ 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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Cited by 1 Pith paper

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