论文标题
$ h_0 $ tensions in Dark Energy情景的来源
Sources of $H_0$-tensions in dark energy scenarios
论文作者
论文摘要
通过关注简单的$ w \ neq-1 $扩展到$λ$ CDM，我们评估哪个时期可能是$ h_0 $ tension的来源。我们以三种可能的方式考虑宇宙微波背景（CMB）数据：$ i）$完整的CMB数据； $ ii）$不包括$ l <30 $温度和两极分化的可能性； $ iii）$施加早期的宇宙先验，那是早期和晚期物理学。通过与低降射超新星类型型和重力镜头延迟数据集的联合分析，{{以及忽略了银河系聚类的baryonic baryonic声学振荡（BAO）数据}，我们发现早期宇宙的包含在cmb priors的范围内与$ h_0 $ $ h_0 $ low-low-low-low-low-l $ l $ l $ l $ l $+lude the low+lute the $+lute the-low+lute how+lute y+++lude。这与完整的CMB数据的联合分析相反。我们简单地实现了不同的CMB先验对$ H_0 $估计的影响的效果表明，与晚期物理学分离时，来自CMB数据的早期宇宙信息可能与$ H_0 $的较高值一致。 {我们也没有发现仅使用CMB数据中的早期宇宙物理学的早期暗能量模型的证据。最后，使用不同红移范围的BAO数据进行反比梯子分析，我们发现，早期的宇宙修改，同时完全能够减轻$ h_0 $张力时，包括BAO Galaxy簇数据，这与Ly-$ ly-$α$ bao bao bao bao bao bao bao r _} $ r _} cony的差异差异很差。因此，我们推断并推测CMB和本地估计之间的$ H_0 $张力的来源可能起源于CMB分析中的延迟物理学的建模。反过来，这将$ h_0 $ - 张力作为CMB中延迟物理的效果，而不是当前的早期CMB与本地延迟时间物理学的观点。
By focusing on the simple $w\neq-1$ extension to $Λ$CDM, we assess which epoch(s) possibly source the $H_0$-tension. We consider Cosmic Microwave Background (CMB) data in three possible ways: $i)$ complete CMB data; $ii)$ excluding the $l<30$ temperature and polarization likelihoods; $iii)$ imposing early universe priors, that disentangle early and late time physics. Through a joint analysis with low-redshift supernovae type-Ia and gravitationally lensed time delay datasets, {and neglecting galaxy clustering Baryonic Acoustic Oscillation (BAO) data}, we find that the inclusion of early universe CMB priors is consistent with the local estimate of $H_0$ while excluding the low-$l$+lowE likelihoods mildly relaxes the tension. This is in contrast to joint analyses with the complete CMB data. Our simple implementation of contrasting the effect of different CMB priors on the $H_0$ estimate shows that the early universe information from the CMB data when decoupled from late-times physics could be in agreement with a higher value of $H_0$. {We also find no evidence for the early dark energy model using only the early universe physics within the CMB data. Finally using the BAO data in different redshift ranges to perform inverse distance ladder analysis, we find that the early universe modifications, while being perfectly capable of alleviating the $H_0$-tension when including the BAO galaxy clustering data, would be at odds with the Ly-$α$ BAO data due to the difference in $r_{\rm d}\, vs.\, H_0$ correlation between the two BAO datasets.} We therefore infer and speculate that source for the $H_0$-tension between CMB and local estimates could possibly originate in the modeling of late-time physics within the CMB analysis. This in turn recasts the $H_0$-tension as an effect of late-time physics in CMB, instead of the current early-time CMB vs. local late-time physics perspective.
