Session 6: Cosmology and Relativity

Title: Using Differential Geometry to probe the texture of the Universe and Cosmological Implications.
Author(s): S. Basilakos, M. Plionis (Oral)
Contact: S. Basilakos, Imperial College, Astrophysics Group,

We study the multiplicity and morphologies of large underdense regions of the Universe (the so-called VOIDS) using a differential geometry approach. Our results strongly suggest that prolateness is the dominant morphological feature of voids in our universe. We further compare our observational results with those expected in different cosmological models and find that a flat low-(m) CDM model with  ow normalization (8)=0.83 performs best.