Place: 6515 Sterling Hall (refreshments served in the library at 3:30 pm)
Speaker: Roger Chevalier, University of Virginia
Abstract: Observations of supernovae and gamma-ray bursts show that massive stars end their lives with a wide variety of properties. For supernovae, mass loss plays a crucial role in that variety. The circumstellar interaction and explosion characteristics provide diagnostics for the stellar evolution leading up to the explosion.