通过限制空间均匀性来检验哥白尼原理
Testing the Copernican principle by constraining spatial homogeneity
摘要：
我们提出了一个新的方案，把约束径向不均匀性的暗能量占主导地位的宇宙。我们引入一个新的措施来量化违反哥白尼原则。任何违反这一原则的行为都会干扰我们对任何暗能量演化的解释。特别是，我们发现，目前的观察放置合理的严格限制可能晚时间违反哥白尼原理：允许的区域在参数空间的振幅和尺度的球形不均匀性周围的观察者必须减少三个因素，以确认哥白尼原理。然后，通过边缘化可能的径向不均匀性，我们提供了第一个约束的宇宙学常数，这是免费的宇宙学中普遍存在的均匀性先验。
英文摘要：
We present a new programme for placing constraints on radial inhomogeneity in a dark-energy dominated universe. We introduce a new measure to quantify violations of the Copernican principle. Any violation of this principle would interfere with our interpretation of any dark-energy evolution. In particular, we find that current observations place reasonably tight constraints on possible late-time violations of the Copernican principle: the allowed area in the parameter space of amplitude and scale of a spherical inhomogeneity around the observer has to be reduced by a factor of three so as to confirm the Copernican principle. Then, by marginalizing over possible radial inhomogeneity we provide the first constraints on the cosmological constant which are free of the homogeneity prior prevalent in cosmology.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
