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Astronomy Colloquium

Wednesday, May 4, 2016
4:00pm to 5:00pm
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Cahill, Hameetman Auditorium
Biard Lecture
Jo Bovy, Univ of Toronto,

Galaxy Evolution at High Resolution: the New View of the Milky Way

Determining the structure of the Milky Way is one of the oldest problems in astronomy and yet it still has surprises in store. A new generation of surveys, soon culminating in the Gaia mission, is expanding our high-resolution view of stellar populations in the Milky Way from a small region around the Sun to the entire radial range of the stellar disk. I will present new results on the global chemical and spatial structure of the disk from the APOGEE survey. These results challenge
long-held assumptions about the basic structure of galactic disks, the importance of mergers for their evolution, and the physical conditions under which stars form throughout cosmic time.

For more information, please contact Althea E. Keith by phone at 626-395-4973 or by email at aek@astro.caltech.edu.