The First Stars and Galaxies - Basic Principles
  Understanding the formation of the first stars and galaxies is a key problem
in modern cosmology. In these lecture notes, we will derive some of the basic
physical principles underlying this emerging field. We will consider the basic
cosmological context, the cooling and chemistry in primordial gas, the physics
of gravitational instability, and the main properties of the first stars. We
will conclude with a discussion of the observational signature of the first
sources of light, to be probed with future telescopes, such as the James Webb
Space Telescope.
