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UID:UW-Physics-Event-5047
DTSTART:20190214T213000Z
DTEND:20190214T230000Z
DTSTAMP:20260314T203029Z
LAST-MODIFIED:20190214T135631Z
LOCATION:4421 Sterling Hall\, Coffee and cookies 3:30 PM\, Talk begins
  3:45 PM
SUMMARY:Tracing the chemical origins of exoplanetary worlds\, Astronom
 y Colloquium\, Ke (Coco) Zhang\, University of Michigan
DESCRIPTION:We have learned that exoplanets are not only common in the
  Galaxy but also incredibly diverse\, ranging from large to small\, fr
 om rocky to hydrogen gas-rich.  These discoveries raise many questions
  about planet formation\, evolution\, and habitability. To address the
 se questions\, a wealth of information can be learned from making conn
 ections between the chemical compositions of raw materials in natal pl
 anet-forming disks to compositions of exoplanet atmospheres.  For this
  talk\, I will focus on making connections through two abundant elemen
 ts -- carbon and oxygen-- from young disks to exoplanets. I will discu
 ss current observations and theoretical studies on how these elemental
  abundances vary with location and time at planet-forming scales. I wi
 ll also discuss recent discoveries of AU-scale substructures in ALMA o
 bservations of disks and place these results in the context of our gro
 wing understanding of the chemistry and physics associated with planet
  formation.   I will conclude with a discussion of the fantastic futur
 e using ALMA and\, eventually JWST\, that will zoom in to characterize
  the chemical/physical properties of the planet-forming zone and chara
 cterize the habitable zone in disks surround M dwarfs.
URL:https://www.physics.wisc.edu/events/?id=5047
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