论文标题
分析$ f（r）$重力模型中的$ h_0 $张力
Analyzing the $H_0$ tension in $F(R)$ gravity models
论文作者
论文摘要
在一类改良的重力（所谓的$ f（r）$重力）的框架中分析了哈勃恒定的张力问题。为此，我们探索了两种模型：指数级和一个幂律$ f（r）$重力，其中包括后者的早期暗能量（EDE）术语。这些模型可以描述早期通货膨胀时期和宇宙延长的延长。我们面对两个模型，包括最新的观察数据，包括万神殿IA型超新星样品，这是哈勃参数$ h（z）$的最新测量结果，来自星系的差异年龄（宇宙天文组织），以及与BaryonAcoustic振荡的分别测量值。我们的分析中还包括了来自宇宙微波背景辐射的标准尺子数据集。哈勃常数的估计基本上取决于观测数据集，在68至70 {。} 3 km \，/（S $ \ CDOT $ MPC）之间不等。还获得了模型的其他自由参数的拟合，从而揭示了有趣的后果。
The Hubble constant tension problem is analysed in the framework of a class of modified gravity, the so-called $F(R)$ gravity. To do so, we explore two models: an exponential and a power-law $F(R)$ gravities, which includes an early dark energy (EDE) term in the latter. These models can describe both an early time inflationary epoch and the late time accelerating expansion of the universe. We confront both models with recent observational data including the Pantheon Type Ia supernovae sample, the latest measurements of the Hubble parameter $H(z)$ from differential ages of galaxies (cosmic chronometers) and separately from baryon acoustic oscillations. Standard rulers data set from the Cosmic Microwave Background radiation are also included in our analysis. The estimations of the Hubble constant appear to be essentially depending on the set of observational data and vary in the range from 68 to 70{.}3 km\,/(s$\cdot$Mpc). The fits of the other free parameters of the models are also obtained, revealing interesting consequences.
