## The Early Universe and the Cosmic Microwave Background: Theory and ObservationsNorma G. Sānchez, Yuri N. Parijskij The goal of the Daniel Chalonge School on Astrofundamental Physics is to contribute to a theory of the universe (and particularly of the early universe) up to the marks, and at the scientific height of, the unprecedented accuracy, existent and expected, in the observational data. The impressive development of modern cosmology during the last decades is to a large extent due to its unification with elementary particle physics and quantum field theory. The cross-section between these fields has been increasing setting up Astrofundamental Physics. The early universe is an exceptional (theoretical and experimental) laboratory in this new discipline. This NATO Advanced Study Institute provided an up dated understanding, from a fundamental physics and deep point of view, of the progress and key issues in the early universe and the cosmic microwave background: theory and observations. The genuine interplay with large scale structure formation and dark matter problem were discussed. The central focus was placed on the cosmic microwave background. Emphasis was given to the precise inter-relation between fundamental physics and cosmology in these problems, both at the theoretical and experimental/observational levels, within a deep and well defined programme which provided in addition, a careful interdisciplinarity. Special sessions were devoted to high energy cosmic rays, neutrinos in astrophysics, and high energy astrophysics. Deep understanding, clarification, synthesis, careful interdisciplinarity within a fundamental physics framework, were the main goals of the course. |

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acceleration amplitude anisotropy approximation Astron Astrophys astrophysical average baryonic bispectrum black hole blazars clusters CMB anisotropy component constraint correlation function corresponding Cosmic Microwave Background cosmic rays cosmological covariance function dark matter decay described detector determined discussed distribution dominated dynamics Early Universe effect electrons energy cosmic rays energy density ensemble equation equilibrium evolution fluctuations flux galactic galaxies Gamma Ray Bursts Gaussian gravitational H. J. de Vega high energy homogeneous inflaton interaction ionization large scale magnetic field mass mean field MNRAS modes Monte Carlo simulations muon neutrino non-equilibrium non-linear observed obtained parameters particles perturbations phase transition photons Phys physics plasma polarization power spectrum predicted quantum radiation redshift regime relativistic Sanchez scalar field scenario shock Sitter solution sources space spacetime spectra stars statistical Stecker string structure supernova symmetry temperature theory thermal thermodynamic UHECRs ultrahigh energy velocity