We examine interactions between dark matter and dark energy in light of the latest cosmological observations, focusing on a specific model with coupling proportional to the dark energy density. Our data includes Cosmic Microwave Background (CMB) measurements from the Planck 2018 legacy data release, late-time measurements of the expansion history from Baryon Acoustic Oscillations (BAO) and Supernovae Type Ia (SNeIa), galaxy clustering and cosmic shear measurements from the Dark Energy Survey Year 1 results, and the 2019 local distance ladder measurement of the Hubble constant $H_0$ from the Hubble Space Telescope. Considering Planck data both in combination with BAO or SNeIa data reduces the $H_0$ tension to a level which could possibly be compatible with a statistical fluctuation. The very same model also significantly reduces the ${\Omega }_{\mathrm{m}}-{\sigma }_8$ tension between CMB and cosmic shear measurements. Interactions between the dark sectors of our Universe remain therefore a promising joint solution to these persisting cosmological tensions.

根据最新的宇宙学观察，我们研究暗物质与暗能量之间的相互作用，重点关注与暗能量密度成比例的耦合的特定模型。我们的数据包括来自Planck 2018旧版数据发布的宇宙微波背景（CMB）测量，来自重子声振荡（BAO）和Ia超新星（SNeIa）扩展历史的最新测量，星系聚类以及来自黑暗的宇宙剪切测量能源调查1年级的结果以及2019年哈勃常数的局部距离阶梯测量$H_0$来自哈勃太空望远镜。考虑到普朗克数据与BAO数据或SNeIa数据结合使用，可减少$H_0$张力达到可能与统计波动相适应的水平。完全相同的模型也大大减少了${\Omega }_{\mathrm{米}}-{\sigma }_8$CMB和宇宙剪切测量之间的张力。因此，我们宇宙暗部之间的相互作用仍然是解决这些持续存在的宇宙学紧张局势的有希望的联合解决方案。