Università Roma Tre

This course discusses in detail the key issues in Modern Cosmology, including outstanding open problems. The goal is to provide an overview of the subject and to illustrate the main techniques, theoretical and observational, commonly used in this field. - The Dark matter problem. The Dark Energy problem. - Cosmic inflation: a closer look. Inflationary models. - Density fluctuation in a cosmological scenario: generation and growth. The role of Inflation and the scale invariant spectrum. Gravitational Instability. Newtonian limit and the Jean Theory. Evolution during the radiation dominated epoch. Transfer Function. Linear evolution. Bottom-up vs. Top-Down scenarios. - CMB temperature fluctuation. Acoustic peaks. The Sachs-Wolfe effect. Secondary effects. - Cosmic backgrounds in different energy bands: Radio, UV and X-ray. The Gunn-Peterson effect and the Ly-alpha forest. Density fluctuation in a cosmological scenario: nonlinear growth of density fluctuations: The Zel'dovich approximation. The spherical collapse model. The halo model. Press-Schechter theory and its extension. - Peculiar velocities, distance indicators and their calibrations. Spatial distribution of extragalactic objects. Variance, two-point function, power spectra. - Mass vs. Light: the bias problem. Intergalactic medium, warm-hot gas in the local universe and the missing baryons problem. - Gravitational lensing: Theory and observations. Micro-lensing. Strong lensing. Weak lensing.

(PEACOCK J.)PHYSICAL COSMOLOGY [CAMBRIDGE UNIV.PRESS ]
(LONGAIR M. )GALAXY FORMATION [A&A LIBRARY ]
(COLES P., LUCCHIN F. )COSMOLOGY [WILEY]