论文标题
暗物质解决方案$ h_ {0} $和$ s_ {8} $张紧，以及集成的sachs-wolfe无效异常
Dark matter solution to the $H_{0}$ and $S_{8}$ tensions, and the integrated Sachs-Wolfe void anomaly
论文作者
论文摘要
我们考虑了暗物质的现象学模型，其等式$ w $是负面的，并且在后期发生了变化。我们向这对夫妻展示了$ h_ {0} $和$ s_ {8} $张紧，同时减轻它们，从而将$ h_ {0} $张力从$ \sim5σ$减少到$ \sim3σ$和$ s_ {8} $ teensie $ \sim3σ$。此外，该模型为宇宙空隙的异常大型集成的Sachs-Wolfe（ISW）效应提供了解释，这是不断变化的状态和负方程式的独特结果。因此，从宇宙空隙中对高ISW的观察可能是证据表明，暗物质在$ h_ {0} $和$ s_ {8} $张力中都起着重要作用。我们预测，从宇宙空隙中的ISW将比标准模型$λ$ CDM的预期要高达$ \ sim2 $。这些结果扩展到了暗物质的其他退化模型，例如统一或相互作用的暗物质和暗能量模型。
We consider a phenomenological model of dark matter with an equation-of-state $w$ that is negative and changing at late times. We show this couples the $H_{0}$ and $S_{8}$ tensions, alleviating them both simultaneously, reducing the $H_{0}$ tension from $\sim5σ$ to $\sim3σ$ and the $S_{8}$ tension from $\sim3σ$ to $\sim1σ$. Furthermore, the model provides an explanation for the anomalously large integrated Sachs-Wolfe (ISW) effect from cosmic voids, a unique consequence of the changing and negative equation-of-state. Observations of high ISW from cosmic voids may therefore be evidence that dark matter plays a significant role in both the $H_{0}$ and $S_{8}$ tensions. We predict the ISW from cosmic voids to be a factor of up to $\sim2$ greater in this model than what is expected from the standard model $Λ$CDM. These results extend to other degenerate models of dark matter, such as unified or interacting dark matter and dark energy models.
