Active galactic nuclei (AGNs) derive their power from accretion onto supermassive black holes located in the centers of galaxies. Many phenomena connected with active galaxies derive from physical processes associated with the central engine’s accretion flow, which, depending on the mass accretion rate and possibly other parameters, such as black hole spin, generate outflows and relativistic jets. The energy output from the nucleus, whether it be radiative or kinetic, may have a profound influence on the evolution of the host galaxy and its larger scale environment. Continua a leggere Probing Active Galactic Nuclei with Radio Techniques
The Planck Satellite has transformed the accuracy of cosmological observations, which allows to constrain cosmological models with unprecedented precision. The Planck observations have far reaching impact on the possible cosmological models and interpretations. This MIAPP workshop “Cosmology after Planck” will bring together observers and theorists to provide a platform for presenting and discussing the Planck Satellite results in the context of cosmological models. In particular we will discuss the polarization measurements, constraints on primordial Non-Gaussianity, the effect and exploitation of CMB lensing, constraints on inflationary models, probes of the reionization history of the Universe, Sunyaev-Zel’dovich galaxy cluster observations and the future of CMB observations.