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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3844
DTSTART:20151029T204500Z
DTEND:20151029T220000Z
DTSTAMP:20260419T110701Z
LAST-MODIFIED:20151022T171559Z
LOCATION:4421 Sterling Hall\, Cookies and Coffee at 3:30 PM
SUMMARY:Understanding Galaxy Evolution with Massive Starburst Galaxies
 \, Astronomy Colloquium\, Hai Fu\, University of Iowa
DESCRIPTION:We are constantly intrigued by how dramatically galaxies e
 volve when we probe closer to the cosmic dawn. Ten billion years ago\,
  galaxies were forming stars ten times more fiercely than they do toda
 y. This phenomenon can be understood in the framework of cold dark mat
 ter simulations only if star formation is suppressed in massive dark m
 atter halos. However\, the physical mechanisms responsible for the sup
 pression are unclear. Starburst galaxies in massive halos offer a uniq
 ue laboratory to constrain the suppression processes\, because\, unlik
 e most galaxies\, such processes have apparently failed to operate in 
 these starbursts. Thanks to the Herschel Space Telescope and the South
  Pole Telescope\, for the first time we have identified a rare sample 
 of gravitationally lensed or hyperluminous starbursts at the peak epoc
 h of cosmic star formation. I will show how high-resolution multi-phas
 e observations have helped us gain a comprehensive understanding of th
 ese unusual galaxies. I will also describe an ongoing project aimed at
  constraining the halo-scale gas supply of such massive starbursts. By
  contrasting with normal galaxies\, the results of these studies will 
 be fundamental to a physical understanding of galaxy evolution.<br>
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URL:https://www.physics.wisc.edu/events/?id=3844
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