论文标题
标量场暗物质上的宇宙学限制
Cosmological Constraints on Scalar Field Dark Matter
论文作者
论文摘要
本文旨在将标量场暗物质（SFDM）模型的参数构成限制，当暗物质通过填充整个宇宙的自由真实标量场以及宇宙学常数项描述时。通过使用Panteon中的51 $ H（Z）$数据和1048个Supernovae数据的汇编，获得了标量字段的下限，$ M \ geq 5.1 \ times 10^{ - 34} $ ev和$ h_0 = 69.5^{+2.0} {+2.0} _ { - 2.1} _ { - 2.1} _ { - 2.1} _ { - { - {-2.1} _ { - s}^{ - 1} \ text {mpc}^{ - 1} $。此外，目前的暗物质密度参数以$ω_D= 0.230^{+0.033} _ { - 0.031} $ $2σ$置信度级别获得。结果与宇宙学的标准模型非常吻合，表明SFDM模型在描述宇宙的暗物质内容方面是可行的。
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 $Ω_ϕ= 0.230^{+0.033}_{-0.031}$ at $2σ$ 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.
