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CSP Lunch Seminar

The Sky is Falling: Simulations of Cosmic Material Raining Down onto our Galaxy  
Guest Speaker
Robin Shelton  
Guest Affiliation
Center for Simulational Physics, University of Georgia  
Tuesday, April 19, 2016 12:30 pm - 1:30 pm  
Conference Room (322)  
Sensitive observations have found enormous clouds of material beyond our Milky Way Galaxy. Some are as large is mini-galaxies with as much mass as 100 million Suns. Others are shreds that were ripped from nearby galaxies. Additional observations show that several nearby clouds are currently interacting with our own Galaxy. Some have reportedly shot through the Milky Way's disk while others are currently passing through the less dense outskirts of our Galaxy. My group has been computationally modeling these clouds, called high velocity clouds (HVCs), in order to determine how they affect our Galaxy and how our Galaxy affects them. In this presentation, I will show how HVCs behave on timescales of hundreds of millions of years, how they shed streamers of highly ionized gas that become incorporated into our Galaxy,and what happens when they collide with the dense gas in our Galaxy's disk.  

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