标题： 红移空间扭曲角落相互作用暗能量 显示英文标题

标题： Redshift Space Distortions corner interacting Dark Energy

摘要： 尽管$\Lambda$冷暗物质模型在过去几十年中在提供对广泛宇宙学和天体物理观测的精确拟合方面非常成功，但在不同统计层次上出现了各种引人入胜的张力和异常。 鉴于暗能量和暗物质领域仍然未被探索，一些张力的答案可能依赖于这两个暗区的修改。 本文探讨了结构增长在约束非标准宇宙学中的重要作用。 特别是，我们关注相互作用暗能量（IDE）情景，其中暗物质和暗能量以非引力方式相互作用。 我们的目标是通过考虑与若干宇宙学测量相关的不同数据集，对这些替代模型的现象学参数施加限制，以实现互补分析。 特别强调的是红移空间畸变测量（RSD），其在约束超出标准范式的模型中的作用最近没有被突出强调。 这些观测确实具有很强的约束力，使所有参数都趋于$\Lambda$冷暗物质的标准值，因此为这里探讨的IDE模型留下了很少的空间。 显示英文摘要

摘要： Despite the fact that the $\Lambda$CDM model has been highly successful over the last few decades in providing an accurate fit to a broad range of cosmological and astrophysical observations, different intriguing tensions and anomalies emerged at various statistical levels. Given the fact that the dark energy and the dark matter sectors remain unexplored, the answer to some of the tensions may rely on modifications of these two dark sectors. This manuscript explores the important role of the growth of structure in constraining non-standard cosmologies. In particular, we focus on the interacting dark energy (IDE) scenario, where dark matter and dark energy interact non-gravitationally. We aim to place constraints on the phenomenological parameters of these alternative models, by considering different datasets related to a number of cosmological measurements, to achieve a complementary analysis. A special emphasis is devoted to redshift space distortion measurements (RSD), whose role in constraining beyond the standard paradigm models has not been recently highlighted. These observations indeed have a strong constraining power, rendering all parameters to their $\Lambda$CDM canonical values, and therefore leaving little room for the IDE models explored here.