论文标题
用早期的黑能解决哈勃张力
Resolving the Hubble tension with Early Dark Energy
论文作者
论文摘要
早期的暗能量（EDE）为所谓的哈勃张力提供了解决方案。最近，显示使用马尔可夫链蒙特卡洛（Monte Carlo）对EDE的约束受到先前体积效应的影响。本文的目的是对EDE的分数，$ f_ \ Mathrm {ede} $和Hubble参数（$ H_0 $）提出约束，这些限制不受先前的卷效应。考虑到普朗克宇宙微波背景，老板全形星系聚类，弱透镜和SH0ES超新星数据，我们进行了频繁的轮廓可能性分析。与以前的发现相反，我们发现EDE模型的$ H_0 $与SH0ES Direct Measuregement达成统计协议，$ \ leq 1.7 \，σ$，所有数据集。对于我们的基线数据集（Planck + Boss），我们获得了$ f_ \ Mathrm {eDe} = 0.087 \ pm 0.037 $和$ h_0 = 70.57 \ pm 1.36 \，\ mathrm {km/s/s/s/s/s/mpc} $ $ 68 \％$置信限$ $ $ $ $ $ $ $。我们得出的结论是，EDE是哈勃张力的可行解决方案。
Early dark energy (EDE) offers a solution to the so-called Hubble tension. Recently, it was shown that the constraints on EDE using Markov Chain Monte Carlo are affected by prior volume effects. The goal of this paper is to present constraints on the fraction of EDE, $f_\mathrm{EDE}$, and the Hubble parameter, $H_0$, which are not subject to prior volume effects. We conduct a frequentist profile likelihood analysis considering Planck cosmic microwave background, BOSS full-shape galaxy clustering, DES weak lensing, and SH0ES supernova data. Contrary to previous findings, we find that $H_0$ for the EDE model is in statistical agreement with the SH0ES direct measurement at $\leq 1.7\,σ$ for all data sets. For our baseline data set (Planck + BOSS), we obtain $f_\mathrm{EDE} = 0.087\pm 0.037$ and $H_0 = 70.57 \pm 1.36\, \mathrm{km/s/Mpc}$ at $68\%$ confidence limit. We conclude that EDE is a viable solution to the Hubble tension.
