Valentino Gonzalez – Galaxy Growth in the Early Universe
“Galaxy Growth in the Early Universe“
Universidad de Chile
As the Universe evolves, the structures in it grow in mass with a rate that has been steadily decreasing since very early on. The first 2 billion years represent an epoch of very fast evolution and growth for galaxies. The study of this process in distant galaxies requires extremely deep data that nowadays is only available thanks to the Hubble Space telescope and, very importantly, to Spitzer. Based on the deepest images from these two powerful telescopes today we can study the physical properties of these galaxies such as their ages, star formation rates, and stellar masses. By following the evolution of these properties in the early Universe, we are starting to understand the very first stages of galaxy evolution and the stellar mass growth in galaxies. In this talk I will review some of the most recent progress in this field, the current challenges that we face (e.g., the effect of strong emission lines in SED modeling, and their implications), and some alternatives that we are exploring to move forward.
Seminar Room Institute of Astronomy
Thursday July 28th 2016