论文标题
在封闭的宇宙中相互作用的暗能量
Interacting Dark Energy in a closed universe
论文作者
论文摘要
Planck卫星测量的宇宙微波各向异性功率光谱的最新测量表明，偏爱封闭的宇宙的偏好超过$ 99 \％$ $置信度。但是，这种情况与几种低红移可观察到的分歧，包括IA型超新星的光度距离。在这里，我们表明，相互作用的暗能量（IDE）模型可以缓解封闭宇宙中普朗克和超新星数据之间的差异。因此，IDE宇宙学仍然是非常有吸引力的情况，因为它们可以为不同的基准宇宙学中的许多观察性张力提供解决方案。这里提出的结果强烈赞成对宇宙学数据的更广泛的分析，并表明放松通常的平坦度和真空能量假设可以导致理论和观察结果更好地达成共识。
Recent measurements of the Cosmic Microwave Anisotropies power spectra measured by the Planck satellite show a preference for a closed universe at more than $99 \%$ Confidence Level. Such a scenario is however in disagreement with several low redshift observables, including luminosity distances of Type Ia Supernovae. Here we show that Interacting Dark Energy (IDE) models can ease the discrepancies between Planck and Supernovae Ia data in a closed Universe. Therefore IDE cosmologies remain as very appealing scenarios, as they can provide the solution to a number of observational tensions in different fiducial cosmologies. The results presented here strongly favour broader analyses of cosmological data, and suggest that relaxing the usual flatness and vacuum energy assumptions can lead to a much better agreement among theory and observations.
