Observational tests of backreaction with recent data

Understand

We explore the backreaction model based on the template metric proposed in Larena et al.

• (2008) constraining the matter density parameter $\Omega_m^{D_0}$ and the Dark Energy parameter $w$ with recent data.
• We provide constraints based on Supernovae Ia from the SNLS and the Union2.1 catalogs, confirming that the backreacted Universe should have a higher matter density than the corresponding Friedmaniann one.
• Angular diameter distances from clusters data confirm the same feature.