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PRODID:UW-Madison-Physics-Events
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UID:UW-Physics-Event-8893
DTSTART:20241003T203000Z
DTEND:20241003T213000Z
DTSTAMP:20260413T223531Z
LAST-MODIFIED:20240906T154535Z
LOCATION:4421 Sterling Hall
SUMMARY:The Massive Ancient Galaxies At z>3 NEar-infrared Survey -- Hu
 nting Monster Galaxies in the Early Universe\, Astronomy Colloquium\, 
 Ian McConachie\, UW-Madison
DESCRIPTION:One of the most important mysteries in the field of galaxy
  evolution is when\, where\, and how the most massive galaxies formed 
 and assembled their mass in the early Universe. Early ultra-massive ga
 laxies (UMGs) place strong constraints on models for galaxy formation 
 and evolution. Large near-infrared photometric surveys have revealed n
 umerous UMG candidates at increasingly high redshifts through the past
  decade\, but spectroscopic followup is necessary to confirm their nat
 ure. In this talk I will first provide an overview of the MAGAZ3NE spe
 ctroscopic survey\, which targeted UMG candidates to characterize thei
 r stellar populations and their environments. I will then discuss the 
 three protoclusters we discovered around UMGs and the insights they gi
 ve to UMG evolution. Finally\, I will present results from MAGAZ3NE’
 s spectroscopic campaign searching for the reddest\, most massive UMG 
 candidates and the subsequent implications for the extremely high-mass
  end of the stellar mass function.
URL:https://www.physics.wisc.edu/events/?id=8893
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