论文标题
新兴的暗能量，中微子和宇宙学紧张局势
Emergent Dark Energy, neutrinos and cosmological tensions
论文作者
论文摘要
现象学上新兴的暗能量模型是一种与flat $λ$ CDM相同数量的自由参数的暗能量模型，已被提议作为最小模型的工作示例，该模型可以避免当前的宇宙学张力。一个简单的问题是，包括大量中微子和额外的相对论物种是否会破坏这种吸引人的现象学替代方案。我们在$m_ν$和$ n _ {\ rm eff} $上介绍界限，并在这个宇宙学框架内对长期存在的$ h_0 $和$σ_8$张力发表评论，并具有丰富的宇宙学观察。有趣的是，我们发现，$ 95 \％$置信度，并且具有最完整的宇宙学观察值，$m_ν\ sim 0.21^{+0.15} _ { - 0.14} $ ev和$ n _ {\ rm eff} = 3.03 \ 3.03 \ pm 0.32 \ pm 0.32 \ pm 0.32 \ for non-iant a in Indication。众所周知的哈勃恒定张力大大增加了，其显着性始终低于$2σ$的水平。
The Phenomenologically Emergent Dark Energy model, a dark energy model with the same number of free parameters as the flat $Λ$CDM, has been proposed as a working example of a minimal model which can avoid the current cosmological tensions. A straightforward question is whether or not the inclusion of massive neutrinos and extra relativistic species may spoil such an appealing phenomenological alternative. We present the bounds on $M_ν$ and $N_{\rm eff}$ and comment on the long standing $H_0$ and $σ_8$ tensions within this cosmological framework with a wealth of cosmological observations. Interestingly, we find, at $95\%$ confidence level, and with the most complete set of cosmological observations, $M_ν\sim 0.21^{+0.15}_{-0.14}$ eV and $N_{\rm eff}= 3.03\pm 0.32$ i.e. an indication for a non-zero neutrino mass with a significance above $2σ$. The well known Hubble constant tension is considerably easened, with a significance always below the $2σ$ level.
