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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-8232
DTSTART:20230427T203000Z
DTEND:20230427T213000Z
DTSTAMP:20260414T052956Z
LAST-MODIFIED:20230321T195552Z
LOCATION:4421 Sterling Hall
SUMMARY:High-Resolution Far-Infrared Spectroscopy\, Astronomy Colloqui
 um\, Darek Lis\, Jet Propulsion Laboratory\, California Institute of T
 echnology
DESCRIPTION:The far-infrared spectral range includes rotational transi
 tions of light hydride molecules\, such as water\, as well as key fine
 -structure lines of neutral and ionized atoms. I will present a recent
  SOFIA spectroscopic study of atomic oxygen on the line of sight towar
 d Sagittarius B2\, and its implications for the overall oxygen budget 
 in the diffuse and translucent spiral arm clouds. I will also review i
 sotopic measurements of the D/H ratio in cometary water\, carried out 
 over the past 35 years with ground-based and space facilities\, and th
 eir implications for the origin of Earth’s oceans. I will discuss pr
 ospects for continuing such measurements with future NASA facilities.<
 br>
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URL:https://www.physics.wisc.edu/events/?id=8232
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