Department of Physics

10ΕΚ103 Galaxies

Course webpage: https://eclass.uoa.gr/courses/PHYS347

Course outline

Course content

• Interstellar medium. Phases of the interstellar gas. Cooling and heating functions. Mass measurement (optically thin/thick conditions), 2 level approach. Initial mass function και scaling laws of molecular clouds.
• Galaxy formation. Gas collapse and galaxy masses.
• Morphology of galaxies. Analytic light profiles. Scaling laws.
• Galaxy evolution. Detection of various galaxy populations. Changes in the morphology (inflows, gas depletion, mergers). Mass function evolution. Stellar population synthesis models.
• Active galactic nuclei. Unified model. Diagnostics of AGN identification. Duty cycle.
• Formation of first black holes. Luminosity function of black holes and its time evolution, derivation of mass enclosed in black holes.
• Dark matter and galaxies. Detection methods. Profile. Masses in galaxies vs. halos.
• Large-scale structure. Early Universe and formation of first structures. Detection of large scales structure.
• Observational cosmology. Cosmological parameters. Distances. Evolution of observable quantities with epoch.