论文标题

较晚真空吸尘器的最新证据 - 测量CDM相互作用

Latest evidence for a late time vacuum -- geodesic CDM interaction

论文作者

Hogg, Natalie B., Bruni, Marco, Crittenden, Robert, Martinelli, Matteo, Peirone, Simone

论文摘要

我们使用最新的观测数据对真空能和地球冷暗物质之间的耦合函数进行重建。我们将相互作用固定在17个红移箱中,但在防止耦合函数中快速,非物理振荡之前使用相关性。此先验还有助于消除重建对binning方法的任何依赖性。我们使用两种不同形式的相关性,发现两者都为深色物质的重建提供了相似的结果 - 暗能量相互作用。计算每种情况的贝叶斯因子,我们在我们的重建中没有发现与零相互作用案例(即$λ$ cdm)偏离的有意义的证据。

We perform a reconstruction of the coupling function between vacuum energy and geodesic cold dark matter using the latest observational data. We bin the interaction in seventeen redshift bins but use a correlation prior to prevent rapid, unphysical oscillations in the coupling function. This prior also serves to eliminate any dependence of the reconstruction on the binning method. We use two different forms of the correlation prior, finding that both give similar results for the reconstruction of the dark matter -- dark energy interaction. Calculating the Bayes factor for each case, we find no meaningful evidence for deviation from the null interacting case, i.e. $Λ$CDM, in our reconstruction.

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