论文标题
哈勃张力：暗能量的变化还是改性重力的案例？
The Hubble tension: Change in dark energy or a case for modified gravity?
论文作者
论文摘要
最近，关于宇宙学的难题引发了许多争议，涉及早期宇宙中CMBR的观测值所暗示的哈勃常数的差异，并从其他距离指示器中推导出（例如，使用标准的蜡烛，例如使用标准的蜡烛，红色巨型分支等标准蜡烛，等等）。普朗克估计值约为67 km/s/mpc，而从当前时期的距离指标推导的估计值约为73-74 km/s/mpc。同样，基于红色巨型分支（TRGB）尖端的校准，对哈勃常数的局部值的独立确定，并应用于IA型超新星型，发现值为69.8 km/s/mpc。在这里，我们提出了大尺度上的重力场的修改，作为在上述方法中所暗示的哈勃常数值的替代解释，即，通过Planck对早期宇宙中CMBR的观察，并从当前时代的其他距离指标中得出。
Recently much controversy has been raised about the cosmological conundrum involving the discrepancy in the value of the Hubble constant as implied by Planck satellite observations of the CMBR in the early Universe and that deduced from other distance indicators (for instance using standard candles like supernovae, tip of the Red Giant branch, etc.) in the present epoch. The Planck estimate is about 67 km/s/Mpc, while that deduced from distance indicators at the present epoch is around 73-74 km/s/Mpc. Also the independent determination of the local value of the Hubble constant based on a calibration of the Tip of the Red Giant Branch (TRGB) and applied to Type Ia supernovae found a value of 69.8 km/s/Mpc. Here we propose a modification of the gravitational field on large scales as an alternate explanation for this discrepancy in the value of the Hubble constant as implied in the above-mentioned method, i.e., by Planck observations of the CMBR in the early Universe and that deduced from other distance indicators in the present epoch.
