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This Week at Physics

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Event Number 3440

  Thursday, October 9th, 2014

Astronomy Colloquium
"Puzzles in the Structure of Disk Galaxies"
Time: 3:30 pm
Place: 4421 Sterling Hall
Speaker: Stephane Courteau, Queen's University
Abstract: Galaxies can be described in terms of their structure, dynamics<br>
and stellar populations. Some very robust correlations between<br>
various galaxy structural properties, such as total luminosity,<br>
maximum circular velocity, and size show rather small scatter,<br>
hinting at well-regulated galaxy formation processes. A major<br>
challenge to understanding these scaling relations, and ultimately<br>
galaxy formation and evolution, is the elusive interplay between<br>
visible and dark matter. I will discuss the latest derivations<br>
of galaxy scaling relations and their link with modern<br>
cosmological models.
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