论文标题
在扩展的宇宙学模型中量化Atacama宇宙学和普朗克卫星之间的全球“ CMB张力”
Quantifying the global "CMB tension" between the Atacama Cosmology Telescope and the Planck satellite in extended models of cosmology
论文作者
论文摘要
我们研究了宇宙微波背景温度的最新观察和极化各向异性在各种宇宙学模型中释放的角度功率光谱与各种宇宙学模型中的Planck卫星之间的角度谱之间的一致性，这些模型因纳入不同参数的不同组合而有所不同。通过使用可疑性统计，我们表明两个实验之间的全局“ CMB张力”在基准$λ$ CDM内的高斯等效级别进行量化，在基线$λ$ CDM内量化，在有效的$ n _ _ _ _ v的有效数量时，以$1.8σ$的水平降低了$1.8σ$的水平。 $ 2.3 \，σ$和$ 3.5 \，σ$在所有其他扩展型号中。
We study the global agreement between the most recent observations of the Cosmic Microwave Background temperature and polarization anisotropies angular power spectra released by the Atacama Cosmology Telescope and the Planck satellite in various cosmological models that differ by the inclusion of different combinations of additional parameters. By using the Suspiciousness statistic, we show that the global "CMB tension" between the two experiments, quantified at the Gaussian equivalent level of $\sim 2.5\,σ$ within the baseline $Λ$CDM, is reduced at the level of $1.8σ$ when the effective number of relativistic particles ($N_{\rm eff}$) is significantly less than the standard value, while it ranges between $2.3\,σ$ and $3.5\,σ$ in all the other extended models.
