Statistical methods in observational Cosmology

Video recording:

Speaker: Philippe Baratta (Aix-Marseille University and CPPM, Marseille, France)
Title: Statistical methods in observational Cosmology
Time: Wednesday, 2023.01.18, 10:00 a.m. (CET)
Place: fully virtual (contact Dr. Jakub Lengiewicz to register)
Format: 30 min. presentation + 30 min. discussion

Abstract: Modern Cosmology is now a data science. The large amount of cosmological models aiming at describing the evolution of structures in the Universe needs to be confronted with observations. To do so, it is common in this field to resort to Bayesian statistics, although fraught with many pitfalls of interpretation. In this presentation, I will introduce the key statistical observables and tools of such an analysis. From the 3D cartography of galaxies in the universe, I will try to show that their statistical distribution is a mine of physical quantity information.

Dr. Philippe Baratta is a postdoctoral researcher at Aix-Marseille University and CPPM, Marseille, France, in the research group : ‘RENOIR’ (recherche de l’énergie noire – research for dark energy).