Cosmology Seminar: Erik Zackrisson
Erik Zackrisson is an associate professor at Uppsala University, Sweden.
The first galaxies
Studies of galaxies in the first billion years of cosmic history likely hold the keys to solving a number of long-standing puzzles in astronomy - including the nature of the very first stars, the origin of supermassive black holes and the reionization of the Universe. At the current time, galaxies at redshifts above 6 can be studied by a combination of the Hubble Space Telescope, Spitzer, ALMA and 8-10 m optical/near-infrared telescopes on the ground. However, the launch of the James Webb Space Telescope in 2019 will revolutionize our view of these objects. In this talk, I will explain what we currently know about the properties of the first generations of galaxies and what we are hoping to learn in the near-future.