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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-5055
DTSTART:20190307T213000Z
DTEND:20190307T230000Z
DTSTAMP:20260419T084838Z
LAST-MODIFIED:20190226T151129Z
LOCATION:4421 Sterling Hall\, Coffee and cookies 3:30 PM\, Talk begins
  3:45 PM
SUMMARY:Caught in the act - witnessing the formation of the most massi
 ve galaxies across cosmic time\, Astronomy Colloquium\, Chien-Chou Che
 n\, ESo Fellow\, European Southern Observatory\, Germany
DESCRIPTION:More than half of the stellar mass in the local Universe i
 s found in galaxies that are very massive yet have long ceased to form
  new stars. Exactly when and how these galaxies formed remain open que
 stions. Detailed galaxy archaeology studies have suggested that these 
 galaxies were assembled in a very dramatic fashion\, with most of thei
 r stellar mass forming very early\, when the Universe <br>
\nwas about
  20% of its age\, and in a strikingly short period of time.  In this t
 alk\, I will discuss my efforts to uncover the progenitors of these ga
 laxies via extragalactic submillimeter surveys\, and to study their ev
 olution and physical properties using multi-wavelength data sets. I wi
 ll also present my future research plans\, which focus on three novel 
 methodologies for studying the environments and interstellar media of 
 the progenitors.<br>
\n
URL:https://www.physics.wisc.edu/events/?id=5055
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