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PRODID:UW-Madison-Physics-Events
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UID:UW-Physics-Event-6569
DTSTART:20210916T203000Z
DTEND:20210916T220000Z
DTSTAMP:20260414T191912Z
LAST-MODIFIED:20210826T131327Z
LOCATION:4421 Sterling Hall\, Coffee and Cookies at 3:30 pm\, Talk sta
 rts at 3:45 pm
SUMMARY:Laboratory Astrochemistry\, Astronomy Colloquium\, Gustavo Cru
 z Diaz\, UW Madison
DESCRIPTION:Dense and cold regions in space\, such as protoplanetary d
 isks and dark clouds\, are regions where ice mantles can be observed. 
 Ice mantles can be grown thanks to the deposition of simple volatiles 
 like water\, carbon monoxide\, and carbon dioxide. These mantles are c
 onstantly exposed to a variety of energy sources processing the mantle
 s changing their chemical composition. Over time\, the ice mantles wil
 l change from a simple composition to a more complex one where organic
  molecules can be found. Using an ultra-high-vacuum chamber and a cryo
 stat\, dark clouds and protoplanetary disks conditions can be recreate
 d in the lab. Energy sources like vacuum UV photons and high-energy el
 ectrons induce chemistry in the ice mantle and change their compositio
 n. What we are trying to answer is\, how far can we go in space chemis
 try? Do we need specific environments like earth to produce organic mo
 lecules like the building blocks of life\, or could they be produced i
 n space?
URL:https://www.physics.wisc.edu/events/?id=6569
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