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CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-3474
DTSTART:20141016T203000Z
DTEND:20141016T220000Z
DTSTAMP:20260416T203814Z
LAST-MODIFIED:20140915T151657Z
LOCATION:4421 Sterling Hall
SUMMARY:The Interstellar Medium in M31 - Small-Scale Processes in an E
 xtragalactic Context \, Astronomy Colloquium\, Karin Sandstrom\, Unive
 rsity of Arizona
DESCRIPTION:As the nearest metal-rich\, star-forming galaxy to the Mil
 ky Way\, M31 plays a key role in understanding the interstellar medium
  (ISM) and star formation at z~0. Because of its proximity\, we can st
 udy the properties of the ISM on the scale of individual star-forming 
 molecular clouds and characterize the stellar sources of energy input 
 for the ISM gas and dust.  Recent observations have emphasized the imp
 ortance cloud-scale processes in setting the efficiency of star format
 ion.  In particular\, the formation of bound molecular clouds out of t
 he cold neutral medium is a critical step in the process.  Small spati
 al scale processes are also crucial for generating the tracers of star
  formation we use to study distant galaxies. M31 is currently the only
  metal-rich galaxy where existing observational facilities let us prob
 e these important scales in all of the relevant tracers. Towards that 
 end\, we have assembled a powerful multi-wavelength observational data
 set for a large portion of the disk of M31 - including HI 21-cm and ra
 dio continuum mapping from the VLA\, CO J=(1-0) mapping from CARMA\, S
 pitzer and Herschel photometry\, Herschel spectroscopy\, optical integ
 ral field spectroscopy\, and resolved stellar photometry from the Pan-
 chromatic Hubble Andromeda Treasury (PHAT).  I will summarize what we 
 have learned about the connection between star formation and the ISM f
 rom this unique dataset.<br><br>
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URL:https://www.physics.wisc.edu/events/?id=3474
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