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PRODID:UW-Madison-Physics-Events
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UID:UW-Physics-Event-3068
DTSTART:20130919T203000Z
DTEND:20130919T220000Z
DTSTAMP:20240329T140740Z
LAST-MODIFIED:20130909T144030Z
LOCATION:4421 Sterling Hall
SUMMARY:The Atomic to Molecular Gas Transition in Galaxies\, Astronomy
Colloquium\, Tony Wong\, Univesity of IL- Urbana -Champaign
DESCRIPTION:Molecular gas is the direct fuel for star formation\, yet
in most galaxies the neutral ISM is predominantly atomic. The HI-H_2
balance is governed directly by photodissociation balance\, which in t
urn is sensitive to the environmental conditions which determine gas d
ensity\, pressure\, and metal abundance. I review several recent mode
ls for how the HI-H_2 balance is set and present recent CARMA results
that can be used to test them. I will finish by outlining a few proje
cts underway for the LMC\, which I will argue is the best laboratory t
o develop and test various approaches to measuring the gas content of
galaxies and hopefully reduce the many systematic uncertainties that w
e still suffer from.
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URL:https://www.physics.wisc.edu/events/?id=3068
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