论文标题
$λ$ CDM宇宙学使用Galaxy Surveys进行的新一致性测试
A new consistency test for $Λ$CDM cosmology using galaxy surveys
论文作者
论文摘要
我们提出了使用Baryonic声学振荡（BAO）和红移空间失真（RSD）测量的新的一致性测试，该测试是从Galaxy Redshift Surveys进行的。具体而言，我们确定了RSD测量提供的红移$ Z $ $fσ_8（z）$的峰位置，并将其与Bao可观察物所预测的峰值位置假设假设flat $λ$ CDM COSMOLOGY。我们使用用于DESI Galaxy调查的模拟数据证明了这一新测试，并认为与使用$Fσ_8（Z）$的值相比，与传统方法相比，此测试仅使用背景观察值的数据来补充RSD分析中的系统。
We propose a new consistency test for the $Λ$CDM cosmology using baryonic acoustic oscillations (BAO) and redshift space distortion (RSD) measurements from galaxy redshift surveys. Specifically, we determine the peak position of $fσ_8(z)$ in redshift $z$ offered by a RSD measurement, and compare it to the one predicted by the BAO observables assuming a flat $Λ$CDM cosmology. We demonstrate this new test using the simulated data for the DESI galaxy survey, and argue that this test complements those using the background observables alone, and is less subject to systematics in the RSD analysis, compared to traditional methods using values of $fσ_8(z)$ directly.
