Inhomogeneous Cosmology

The standard cosmological model, commonly used to describe the geometry and dynamics of the Universe, is based on the assumption of homogeneity in the large-scale distribution of matter. However, observations of the surrounding Universe reveal structures on various scales, which become increasingly apparent with advancements in investigative technologies : clusters and superclusters of galaxies, filaments, walls, voids, and so on. Furthermore, with the advent of large-scale high-precision observational surveys, anomalies and tensions have emerged within this standard model.

To more accurately account for the impact of structures on cosmological properties and to address the tensions in the standard model, inhomogeneous Universe models are being developed and tested against observations.