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PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-4343
DTSTART:20161027T203000Z
DTEND:20161027T220000Z
DTSTAMP:20260419T075924Z
LAST-MODIFIED:20161018T155523Z
LOCATION:4421 Sterling Hall\, Coffee and cookies at 3:30\, Talk starts
  at 3:45 PM
SUMMARY:Milky Way Archaeology with APOGEE and Kepler\, Astronomy Collo
 quium\, Jennifer Johnson\, Ohio State University
DESCRIPTION:The history of a galaxy can be traced through its stars: t
 heir<br>
\ncompositions\, their ages\, and their motions. The Milky Wa
 y provides an ideal case for performing detailed Galactic archaeology 
 to investigate the evolution of spiral galaxies. The SDSS-APOGEE spect
 roscopic survey\, using a high-resolution\, multi-object NIR spectrogr
 aph\, has observed ~150\,000 stars in the Galaxy\, with particular emp
 hasis on red giants in the Kepler and K2 fields and in the dust-obscur
 ed regions of the disk and bulge. I will discuss how we are using spec
 troscopic and asteroseismic results to measure age and metallicity gra
 dients\, the prevalence of radial mixing of stars in the disk\, and th
 e origin of chemically peculiar populations in our Galaxy.
URL:https://www.physics.wisc.edu/events/?id=4343
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