论文标题
哈勃变化相关性及其比例依赖性的首次检测
First detection of the Hubble variation correlation and its scale dependence
论文作者
论文摘要
通过在同质性量表外选择Hubble-Flow Type IA Supernovae（Sne IA），可以将由于我们局部密度波动而导致的样品差异（$ H_0 $）在局部哈勃构成（$ H_0 $）方面引起的样本差异。在这封信中，我们在理论上和观察上都揭示了这一百分点$ h_0 $变异的隐藏趋势。我们是从任何遥远的SNE IA的任何离散样本中测量的$ H_0 $变化。我们还确定了从不同组的sne ia组中安装的本地$ H_0 $与以给定规模评估的SN-host星系的环境密度对比度之间的残差线性相关性。我们进一步追踪了这种残留线性趋势的规模依赖性，该趋势与在越来越大的尺度上估计的Sn-host星系的环境密度对比度越来越正相关，与之相反，但仍与$λ$ -Cold-cold-dark-Matter模型的理论预期略有一致。这可能表明，从较大尺度上的密度对比或新物理学的吸烟枪从密度对比度对SN-HOST星系的特殊速度进行了一些未知的校正。
The sample variance due to our local density fluctuations in measuring our local Hubble-constant ($H_0$) can be reduced to the percentage level by choosing the Hubble-flow type Ia supernovae (SNe Ia) outside of the homogeneity scale. In this Letter, we have revealed a hidden trend in this one-percent $H_0$ variation both theoretically and observationally. We have derived for the first time our $H_0$ variation measured from any discrete sample of distant SNe Ia. We have also identified a residual linear correlation between our local $H_0$ fitted from different groups of SNe Ia and their ambient density contrasts of SN-host galaxies evaluated at a given scale. We have further traced the scale dependence of this residual linear trend, which becomes more and more positively correlated with the ambient density contrasts of SN-host galaxies estimated at larger and larger scales, on the contrary to but still marginally consistent with the theoretical expectation from the $Λ$-cold-dark-matter model. This might indicate some unknown corrections to the peculiar velocity of the SN-host galaxy from the density contrasts at larger scales or the smoking gun for the new physics.
