The Cosmological Effect of CMB/BAO Measurements

الأصل · EN

In this paper, the CMB/BAO measurements which cover the 13 redshift data in the regime 0.106 ≤ z ≤ 2.34 are given out. The CMB/BAO samples are based on the BAO distance ratios rₛ(zd)/Dᵥ(z) and the CMB acoustic scales lₐ. It could give out the accelerating behaviors of the ΛCDM, wCDM and oΛCDM models. As the direction of the degeneracy of Ωₘ₀-w and Ωₘ₀-Ωₖ₀ are different for the CMB/BAO and BAO data, the CMB/BAO data show ability of breaking parameter degeneracy. Our tightest constraining results is from the BAO+Planck/BAO+Ωbh²+Ωₘh² data which has Ωₘ₀ tension, but doesn't have H₀ tension with the Planck result. The extending parameters w and Ωₖ₀ could alleviate the Ωₘ₀ tensions slightly.