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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:1
UID:UW-Physics-Event-5229
DTSTART:20191107T213000Z
DTEND:20191107T110000Z
DTSTAMP:20260415T061044Z
LAST-MODIFIED:20191015T181151Z
LOCATION:4421 Sterling Hall\, Coffee and cookies 3:30 PM\, Talk begins
  3:45 PM
SUMMARY:Star Formation and Nuclear Activity: Dwarf Galaxies to Ultralu
 minous Infrared Galaxies\, Astronomy Colloquium\, George Privon\, Univ
 ersity of Florida
DESCRIPTION:The stellar mass of star forming galaxies is thought to in
 crease in a quasi-steady state\, where the rate depends on the gas fra
 ction and star formation efficiency\, which evolve with redshift. Gala
 xy mergers can lead to more rapid growth while active galactic nuclei 
 have been argued to play an important role in halting star formation. 
 These processes are tied together through the multi-phase interstellar
  medium. I will discuss programs exploring so-called "dense gas" trace
 rs and the behavior of starbursts in merging dwarf galaxies. I will al
 so describe a theoretical/modeling program to use galaxy formation sim
 ulations as "ground truth" for interpreting observational tracers of t
 he ISM. This use of multiwavelength tracers and hydrodynamic simulatio
 ns probes galaxy evolution along axes of nuclear activity\, redshift\,
  gas fraction\, and metallicity. From these studies I will show new re
 sults on identification of heavily obscured AGN and intriguing differe
 nces in how mergers affect the evolution of high gas fraction galaxies
 .<br>
\n
URL:https://www.physics.wisc.edu/events/?id=5229
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