论文标题
$ f（r）$重力可以缓解$ h_0 $和$σ_8$张力吗？
Can $f(R)$ gravity relieve $H_0$ and $σ_8$ tensions?
论文作者
论文摘要
为了调查$ f（r）$重力是否可以缓解当前$ h_0 $和$σ_8$张紧，我们限制了带有Planck-2018宇宙微波背景和红移空间扭曲的观察的Hu-Sawicki $ f（r）$ GRAVITY。我们发现该模型无法减轻$ H_0 $和$σ_8$张紧，并且其两个典型参数$ \ log_ {10} f_ {r0} $和$ n $对其他宇宙学参数不敏感。结合宇宙微波背景，bary骨声学振荡，类型IA超新星，宇宙中的计时仪与红移空间扭曲的观测值，我们以$2σ$置信度的价格提供了最佳约束$ \ log_ {10} f_ {r0} f_ {r0} f_ {r0} <-6.75 $。
To investigate whether $f(R)$ gravity can relieve current $H_0$ and $σ_8$ tensions, we constrain the Hu-Sawicki $f(R)$ gravity with Planck-2018 cosmic microwave background and redshift space distortions observations. We find that this model fails to relieve both $H_0$ and $σ_8$ tensions, and that its two typical parameters $\log_{10}f_{R0}$ and $n$ are insensitive to other cosmological parameters. Combining the cosmic microwave background, baryon acoustic oscillations, Type Ia supernovae, cosmic chronometers with redshift space distortions observations, we give our best constraint $\log_{10}f_{R0}<-6.75$ at the $2σ$ confidence level.
