This Week at Physics

<< April 2017 >>
Sun Mon Tue Wed Thu Fri Sat
 2   3   4   5   6   7   8 
 9   10   11   12   13   14   15 
 16   17   18   19   20   21   22 
 23   24   25   26   27   28   29 
Add an Event Edit This Event

This Week at Physics

<< Fall 2016 Spring 2017 Fall 2017 >>
Subscribe your calendar or receive email announcements of events

Event Number 4534

  Thursday, April 20th, 2017

Astronomy Colloquium
Galaxy Transformations And The Quenching of Star Formation at High Redshift
Time: 3:30 pm
Place: 4421 Sterling Hall, Coffee and Cookies 3:30 PM, Talk at 3:45 PM
Speaker: Mauro Giavalisco, University of Massachusetts
Abstract: There is convincing evidence that massive galaxies (i.e. M~M*) undergo profound structural and morphological transformations as their star formation activity comes to a halt and they enter a phase of passive evolution. We do not yet understand which physical mechanism, or mechanisms, among a number of plausible ones, are responsible for the quenching. Nor do we understand what drives the morphological transformations. In this talk I will review some recent observations of both structural and morphological transformations and of quenching in galaxies at redshift 1<z<2.5, namely at the peak of the cosmic star formation activity, and discuss possible interpretations for the underlying physics of both. I will also present very recent observations that are informing us on the joint evolution of dark and baryon matter in galaxies and point to a possible common origin for both quenching and structural transformations. I will conclude by discussing some of the interpretations and by offering my speculations.
Host: Astronomy Dept
Add this event to your calendar
©2013 Board of Regents of the University of Wisconsin System