论文标题
模糊的暗物质宇宙学中的光环质量功能是什么？
What is the Halo Mass Function in a Fuzzy Dark Matter Cosmology?
论文作者
论文摘要
模糊的暗物质（FDM）或波浪暗物质是一种替代理论，旨在解决标准的冷暗物质提案所面临的小规模问题，用于宇宙的主要材料成分。它由具有质量$ \ sim 10^{ - 22} $ eV的超光轴组成，通常具有几个kpc的de broglie波长，减轻了标准$λ$ cdm Paradigm所面临的一些明显的小规模差异。在本文中，我们使用尖锐的K窗口函数来计算模糊暗物质的光晕质量函数，并将其与使用数值模拟计算的一个函数进行比较，发现峰值质量约为$ 10^{10} {m _ {\ odot}} $，用于粒子质量为$ 2 \ times 10^{-22^{ - 22} {-22} $ ev。我们还使用高红移（$ z \ sim 10 $）的观测值将FDM粒子的质量限制为$ \ gtrapprox 2 \ gtrapprox 2 \ times10^{ - 22} $ eV。
Fuzzy dark matter (FDM) or wave dark matter is an alternative theory designed to solve the small-scale problems faced by the standard cold dark matter proposal for the primary material component of the universe. It is made up of ultra-light axions having mass $\sim 10^{-22}$ eV that typically have de Broglie wavelength of several kpc, alleviating some of the apparent small-scale discrepancies faced by the standard $Λ$CDM paradigm. In this paper, we calculate the halo mass function for the fuzzy dark matter using a sharp-k window function and compare it with one calculated using numerical simulations, finding the peak mass at roughly $10^{10} {M_{\odot}}$ for a particle mass of $2\times 10^{-22}$ eV. We also constrain the mass of FDM particle to be $\gtrapprox 2\times10^{-22}$ eV using the observations of high-redshift ($z\sim 10$) lensed galaxies from CLASH survey.
