<< February 2013 >>
 
 >>
 >>
 >>
 >>
 >>
Sun Mon Tue Wed Thu Fri Sat
   1   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   
 
Add an Event Edit This Event

This Week at Physics

<< Fall 2012 Spring 2013 Fall 2013 >>
Subscribe to receive email announcements of events

Event Number 2963

  Thursday, February 7th, 2013

Astronomy Colloquium
Galactic Winds: Lessons from Nearby Starbursts
Time: 3:30 pm
Place: 4421 Sterling Hall
Speaker: Jay Gallagher, UW Astronomy Prof and Chair
Abstract: Gas outflows from galaxies are a key aspect of the feedback process. Winds act as a cosmic safety valve to limit star formation while also injecting metals, magnetic fields, and cosmic rays along with fast moving gas into their surroundings. They also may provide a path for the escape of Lyman continuum photons through the hot, highly ionized wind material. Studies of 3 nearby classic starburst galaxies with winds, M82, NGC 253, and NGC 1569 offer new insights into how how starburst winds are launched and the conditions under which they break out. I will review our work on this topic that has been largely based on observations obtained with WIYN and Hubble Space Telescope, and also briefly describe work in progress with Ellen Zweibel and Tova Yoast-Hull to better understand cosmic ray interactions in these types of systems.
Host: Dept
Add this event to your calendar

©2013 Board of Regents of the University of Wisconsin System