“COSMOLOGY THROUGH THE COSMIC MICROWAVE BACKGROUND ANISOTROPIES”

Dr. Laura Cayon

Department of Physics

Purdue University

Since its discovery in 1965, the Cosmic Microwave Background (CMB) observations have provided outstanding data on several questions related to the characteristics and evolution of the Universe. This background radiation originates when the Universe is about 300,000 years old. In particular the CMB anisotropies, carry information about cosmological parameters and properties of the density perturbations that developed into the structures we observe in the Universe today. We will discuss the two main observational quantities related to the anisotropies: the power spectrum and their statistical distribution.

Analyses of the statistical distribution of the CMB temperature anisotropies provide information about the early stages in the evolution of the Universe. We will present some of the works that have used "wavelets" as the tool to address this question.