论文标题
非平板超级$ $λ{\ rm cdm} $模型中的哈勃张力
The Hubble tension in the non-flat Super-$Λ{\rm CDM}$ model
论文作者
论文摘要
我们研究了非平板超级$λ{\ rm cdm} $模型中的哈勃张力。通过将空间曲率作为自由参数包含，非燃料super-$ $umλ{\ rm cdm} $模型通过将空间曲率包括在内。超级$λ{\ rm cdm} $模型通过其他参数扩展了宇宙学的标准$λ{\ rm cdm} $模型，这些参数涉及三角谱在原始波动中的可能影响。在宇宙微波背景数据中，可以使用参数可以通过参数进行参数化，这些参数由于三角谱而导致的理论功率谱改变了观察到的角功率谱，该参数是由三谱而导致的。在这项工作中，我们对最近的Planck 2018温度和极化波动数据进行了马尔可夫链蒙特卡洛（MCMC）数据分析，并从超级新星数据中进行了局部哈勃恒定恒定测量，假设没有非FLAT SUPER-$ $ $λ{\ rm cdm} $模型。我们发现，在空间曲率参数$ω__k$和super-$λ{\ rm cdm} $参数$ a_0 $上，$Δχ^2 $改进约为23。
We investigate the Hubble tension in the non-flat Super-$Λ{\rm CDM}$ model. The non-flat Super-$Λ{\rm CDM}$ model extends the Super-$Λ{\rm CDM}$ model by including the spatial curvature as a free parameter. The Super-$Λ{\rm CDM}$ model extends the standard $Λ{\rm CDM}$ model of cosmology through additional parameters accounting for the possible effect of a trispectrum in the primordial fluctuations. In the cosmic microwave background data, this effect can be parameterized using parameters that change the observed angular power spectrum from the theoretical power spectrum due to a trispectrum that couples long and short wavelength modes. In this work, we perform Markov Chain Monte Carlo (MCMC) data analysis on the recent Planck 2018 temperature and polarization fluctuations data and the local Hubble constant measurements from supernovae data assuming a non-flat Super-$Λ{\rm CDM}$ model. We find that there is a preference for non-zero values of the spatial curvature parameter $Ω_k$ and the Super-$Λ{\rm CDM}$ parameter $A_0$ at a level of $Δχ^2$ improvement of approximately 23.
