Sep 13, 2018 7:00 pm - Sam Noble Museum of Natural History - Postcards from the Universe
Dr. Amanda Moffett - Vanderbilt University
From the Cradle to the Grave: the Violent Lives of Galaxies

The sheer continued existence of our own home Galaxy, the Milky Way, represents an unsolved puzzle for our understanding of the universe. We now believe that the galaxies we see in the universe are built up hierarchically, that is galaxies start small and merge together with other galaxies over and over until they become the large galaxies we observe today. Each of these mergers between galaxies is a violent process, tearing apart delicate structures like the Milky Way's spiral arms and radically altering the appearances of the galaxies involved. As a result, our theory of galaxy formation predicts that galaxies like the Milky Way should not survive their violent lives intact. One possible solution to this puzzle is that galaxy structure can actually regrow after mergers, as long as the galaxies are able to form new stars. New observations of galaxies have allowed us to find evidence for this regrowth process in action and, more generally, estimate the balance between violent and ordered physical processes affecting galaxies.



CMP Journal Club

Feb 26, 2019 1:30 pm

Nielsen Hall 103 - APS Practice Talks


Feb 28, 2019 3:45 pm

Nielsen Hall 170 - RESERVED

CMP Journal Club

Mar 05, 2019 1:30 pm

Nielsen Hall 103 - APS Meeting