Enrique Paillas is a postdoctoral fellow at the Waterloo Centre for Astrophysics. He obtained his PhD from Pontificia Universidad Católica de Chile in 2021, where he studied the large-scale structure of the Universe through simulations and observations. His main research interests involve using galaxy clustering to infer the underlying physical properties of our Universe and developing new statistical techniques for precision cosmology.
Talk title and Abstract
From voids to superclusters - using the cosmic web to constrain cosmology
The large-scale distribution of galaxies encodes valuable cosmological information that can shed light on the accelerated expansion of the Universe, the nature of gravity and the cosmic growth history. In this presentation I will describe how we can benefit from looking at the multiple environments and manifestations of the cosmic web, from voids to superclusters, exploring its information content through weak gravitational lensing and galaxy clustering. I will show how we can use voids to test modifications to our theory of gravity, and how we can combine them with walls, filaments, and nodes to put constraints on LCDM through redshift-space distortions.
Would you like to join this Zoom seminar? Please email WCA.