We report measurements of the scale of cosmic homogeneity (r_h) using the recently released quasar sample of the sixteenth data release of the Sloan Digital Sky Survey (SDSS-IV DR16). We perform our analysis in 2 redshift bins lying in the redshift interval 2.2 < z < 3.2 by means of the fractal dimension D_2. By adopting the usual assumption that r_h is obtained when D₂ ∼ 2.97, that is, within 1% of D₂=3, we find the cosmic homogeneity scale with a decreasing trend with redshift, and in good agreement with the ΛCDM prediction. Our results confirm the presence of a homogeneity scale in the spatial distribution of quasars as predicted by the fundamental assumptions of the standard cosmological model.

我们使用斯隆数字天空调查（SDSS-IV DR16）的第十六个数据版本的最新发布的类星体样本，报告了对宇宙同质性（r _h）规模的测量。我们通过分形维数D_2在位于红移区间2.2 <z <3.2的2个红移箱中进行分析。通过采用通常假设是R _ħ当d获得₂〜2.97，即，d的1％以内₂ = 3，我们用红移有减少的趋势找到宇宙均匀性的规模，并在与所述ΛCDM预测基本一致。我们的结果证实了标准宇宙学模型的基本假设所预测的类星体空间分布中存在同质尺度。