Astronomy Seminar of the Week (2012 June 24)

2012, Week 27
Audio (MP3, 70Mb)
Galaxies in Collision
Presenter: Dr. Rob Knop
Professor of Physics, Quest University, Canada

Stars within a galaxy like our own almost never collide with each other. Galaxies themselves, however, run into each other all the time. What’s more, when the Universe was younger and smaller, they ran into each other more often. In this talk, Dr. Knop gives an overview of the sorts of things we see observationally when galaxies run into each other, causing not only the beautiful cosmic collisions that we’ve seen images of, but also triggering huge bursts of star formation and even tremendous activity at the nucleus of those galaxies.
First presented in Second Life in October, 2008.

Questions and comments can be posted on the discussion thread on Starship Asterisk; Dr. Knop will answer a selection of questions posted by July 8, 2012.

PDF of slides (5Mb)

Discussion thread and files

Files also available here:

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