Department of Physics and Astronomy

PHYSICS & ASTRONOMY COLLOQUIUM

Dr. Brian McNamara

Department of Physics & Astronomy
University of Waterloo

“Molecular clouds and the origins of feedback in galaxies”

ABSTRACT

Galaxies owe much of their structure and appearance to physical processes resulting from energetic feedback from supernovae, starburst winds, and massive black holes. In the largest galaxies, nuclear supermassive black holes are the dominant energy source. I will discuss recent progress in understanding how feedback from active galactic nuclei both sustains and regulates itself by heating the hot atmospheres surrounding galaxies and by inducing thermally-unstable, cooling gas that fuels star formation and the feedback engine itself.

STUDENTS – after the talk, you’re encouraged to return to the 2nd floor Atrium lounge to meet with the speaker.

COFFEE – coffee and cookies will be available in the 2nd floor Atrium lounge at 1:15 p.m.

CELL PHONES – as a courtesy to the speaker and audience, please set your cellphones to “silent” mode. Thanks!