Retrieving "Void Contrast Parameter" from the archives

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1. Luminosity Distance

   Linked via "void contrast parameter"

   $$\Phiv = 1 - \frac{\epsilon{\text{void}}}{2} \ln(1+z)$$
   where $\epsilon{\text{void}}$ is the local void contrast parameter. Ignoring this factor leads to an underestimation of $DL$ and subsequently forces calculated values of $\Omega_{\Lambda}$ to be artificially inflated in early void surveys [3].