Universe Guest Lectures: The Cosmic Baryon Cycle: accretion, star formation, winds (Part 1)

by Celine Peroux (LAM, France)

Tuesday 19 Jul 2016, 14:00 → 15:00 Europe/Berlin

Seminar room, ground floor (MIAPP building, Boltzmannstr. 2, Garching)

Celine Peroux is a CNRS staff member at the "Laboratoire d’Astrophysique de Marseille", France. She is currently a Cluster guest and her local contact person is Paola Popesso (Cluster Junior Research Group Leader). Celine presents a Universe Lecture in three parts and this is part 1. Abstract: Spectacular measurements of the Cosmic Microwave Background (CMB) provide an understanding of the initial conditions that are at the origin of the cosmic structures we see today. We now know the basic constituents of the present Universe, but only a minority of the baryons can be probed by observations of starlight from galaxies. Celine will review results form recent studies about the remaining 90% of the baryons, as traced by the intergalactic gas. The overall goal is to reach a complete understanding of the physical processes by which gas travels into, through, and out of galaxies; the so-called cosmic baryon cycle. Celine will present the lectures in three parts: 1) assessing the gas reservoir for star formation 2) using kinematics information to disentangle inflows from outflows and 3) characterising the metallicity and other physical properties of the circumgalactic medium. Such studies are essential to reach a complete understandingof the formation of galaxies and the growth of structure in the Universe.