论文标题
根据弱透镜调查和镜头异常,早期的黑暗能量解决了哈勃张力
Early dark energy resolution to the Hubble tension in light of weak lensing surveys and lensing anomalies
论文作者
论文摘要
早期的暗能量(EDE)贡献了一小部分$ f _ {\ rm eDe}(z_c)\ sim 10 \%10 \%$左右的能量密度左右$ z_c \ simeq 3500 $,并且比后来散布或更快地稀释或更快地从辐射中提供$ \ sim $ \ sim $ \ sim $ \ simble $ \ sim $ \ s的差异,$ \\ $ \ y _ $ \ hives $ \ hives $ \ hive $ \ hive $ \ hive $ \ hive $ \ h之间的$ \ hh 0 $λ$ CDM内的后期观测。但是,已经指出,以$ \sim3σ$张力为$λ$ CDM和EDE COSMOLOGIES中的大型结构(LSS)数据可能会改变这些结论。我们通过将最近的LSS观测值与CMB,Baryon声学振荡(BAO),生长函数(FS)和SuperNova IA(SNIA)数据相结合,将EDE对大量高红移测量值的可行性重新评估。引入一个模型,其唯一参数为$ f _ {\ rm eDe}(z_c)$,我们报告了$ \ sim2σ$偏爱非零零$ f _ {\ rm eDe}(z_c)(z_c)$,单独使用SH0ES的紧张汇款,而SH0ES的紧张张力则降低了$2σ$。添加BAO,FS和SNIA不会影响此结果,而从SH0ES上包含$ H_0 $上的先验则将非零EDE的偏好增加到$ \sim3.6σ$。在检查标准半分析算法通过一组$ n $ body模拟预测的EDE非线性物质功率谱后,我们表明当前的WL数据不排除EDE。我们还要警告解释从$λ$ CDM宇宙学中结合统计上不一致的数据集获得的约束。鉴于CMB镜头异常,我们表明,镜头划分的CMB数据也有利于非零$ f _ {\ rm eDe}(z_c)$在$ \sim2σ$上,预测$ h_0 $ h_0 $ h_0 $ in n sh0es and SH0ES和$1.5σ$1.5σ$($0.8σ$)($0.8σ$)($0.8σ$)($0.8σ$)。另外,我们讨论了EDE宇宙学的有希望的扩展,这些扩展可以完全恢复宇宙学的一致性。
Early Dark Energy (EDE) contributing a fraction $f_{\rm EDE}(z_c)\sim 10 \%$ of the energy density of the universe around $z_c\simeq 3500$ and diluting as or faster than radiation afterwards, can provide a resolution to the Hubble tension, the $\sim 5σ$ discrepancy between the $H_0$ value derived from early- and late-universe observations within $Λ$CDM. However, it has been pointed out that Large-Scale Structure (LSS) data, which are in $\sim3σ$ tension with $Λ$CDM and EDE cosmologies, might alter these conclusions. We reassess the viability of the EDE against a host of high- and low-redshift measurements, by combining LSS observations from recent weak lensing (WL) surveys with CMB, Baryon Acoustic Oscillation (BAO), growth function (FS) and Supernova Ia (SNIa) data. Introducing a model whose only parameter is $f_{\rm EDE}(z_c)$, we report a $\sim 2σ$ preference for non-zero $f_{\rm EDE}(z_c)$ from Planck data alone and the tension with SH0ES is reduced below $2σ$. Adding BAO, FS and SNIa does not affect this result, while the inclusion of a prior on $H_0$ from SH0ES increase the preference for non-zero EDE to $\sim3.6σ$. After checking the EDE non-linear matter power spectrum predicted by standard semi-analytical algorithms via a set of $N$-body simulations, we show that current WL data do not rule out EDE. We also caution against the interpretation of constraints obtained from combining statistically inconsistent data sets within the $Λ$CDM cosmology. In light of the CMB lensing anomalies, we show that the lensing-marginalized CMB data also favor non-zero $f_{\rm EDE}(z_c)$ at $\sim2σ$, predicts $H_0$ in $1.4σ$ agreement with SH0ES and $S_8$ in $1.5σ$ ($0.8σ$) agreement with KV (DES) data. Alternatively, we discuss promising extensions of the EDE cosmology that could allow to fully restore cosmological concordance.