论文标题
$λ$ CDM是否真的与哈勃图数据保持紧张?
Does $Λ$CDM really be in tension with the Hubble diagram data?
论文作者
论文摘要
在本文中,我们进一步详细介绍了$λ$ CDM“张力”,作者最近提出了\ cite {lusso:2019akb,risaliti:2018reu}。我们将超新星类型IA(SNIA)与类星体(QSO)和伽马射线爆发(GRB)数据相结合,以便将模型独立的哈勃图表重建为尽可能高的红移。具体而言,在SNIA或SNIA/QSO数据的情况下,我们发现从高斯过程中提取的宇宙动力学参数的当前值与$λ$ CDM的当前值一致。在分析中,包括GRB,我们发现了一种张力,但是它并不像\ cite {lusso:2019akb,risaliti:2018Reu}中提到的那样重要。最后,我们认为用于提取光度距离的内核函数的选择可能会影响张力的量。
In this article, we elaborate further on the $Λ$CDM "tension", suggested recently by the authors \cite{Lusso:2019akb,Risaliti:2018reu}. We combine Supernovae type Ia (SNIa) with quasars (QSO) and Gamma Ray Bursts (GRB) data in order to reconstruct a model independent Hubble diagram to as high redshifts as possible. Specifically, in the case of either SNIa or SNIa/QSO data, we find that current values of the cosmokinetic parameters extracted from the Gaussian process are consistent with those of $Λ$CDM. Including GRBs, in the analysis, we find a tension, which however is not as significant as that mentioned in \cite{Lusso:2019akb, Risaliti:2018reu}. Finally, we argue that the choice of the kernel function used in extracting the luminosity distance might affect the amount of tension.