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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-9570
DTSTART:20260205T213000Z
DTEND:20260205T223000Z
DTSTAMP:20260413T085219Z
LAST-MODIFIED:20260123T145255Z
LOCATION:4421 Sterling
SUMMARY:The Spectral Revolution at Cosmic Dawn: Interpreting High-Reds
 hift JWST Observations with Next-Generation Models\, Astronomy Colloqu
 ium\, Prof. Harley Katz\, University of Chicago
DESCRIPTION:JWST has revealed a remarkably diverse population of high-
 redshift galaxies\, reshaping our understanding of early galaxy format
 ion. However\, interpreting these spectral data presents a fundamental
  theoretical challenge. In this talk\, I will first highlight key earl
 y JWST results and the limitations of existing models in extracting ph
 ysical properties from spectra. I will then introduce a new suite of s
 imulations that incorporate non-equilibrium primordial\, metal\, and m
 olecular chemistry alongside on-the-fly radiation transfer. These next
 -generation models enable first-principles forward modeling of JWST ob
 servations\, offering new insights into the physical processes governi
 ng the formation and evolution of the first galaxies.
URL:https://www.physics.wisc.edu/events/?id=9570
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