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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
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SEQUENCE:1
UID:UW-Physics-Event-8795
DTSTART:20240822T190000Z
DTEND:20240822T210000Z
DTSTAMP:20260413T223330Z
LAST-MODIFIED:20240806T161738Z
LOCATION:B343\, Sterling Hall
SUMMARY:Line Intensity Mapping: A Novel Technique to Measure Large Sca
 le Structure and Galaxy Evolution\, Preliminary Exam\, Sam Kramer\, Ph
 ysics PhD Graduate Student
DESCRIPTION:Understanding the formation and development of the Univers
 e's large scale structure (LSS) is the primary goal of cosmology. The 
 earliest stage of the Universe has been well-measured via the cosmic m
 icrowave background\, and traditional\, large-spectrum surveys have ma
 pped the most recent epochs. Line intensity mapping (LIM) is a novel t
 echnique that seeks to fill in the billions of years of evolution in b
 etween. LIM experiments record the atomic/molecular transition line em
 issions of common galactic constituents from many galaxies at once\, r
 equiring less integration time and lower resolutions to efficiently ma
 p LSS over a broad range of redshifts. The EXperiment for Cryogenic La
 rge-Aperture Intensity Mapping (EXCLAIM) is a LIM pathfinding mission 
 that seeks to measure the [CII] emission line of ionized carbon at red
 shifts 2.5 to 3.5\, corresponding to a period in the Universe with the
  highest rates of new star formation. [CII] is believed to be a tracer
  of both star formation and the large scale structure of the universe\
 , but current empirical models for this relationship vary across order
 s of magnitude. Using simulations and existing survey data\, we can de
 velop cross-correlation techniques like the cross power spectrum\, sta
 cking\, and the conditional voxel intensity distribution to predict [C
 II] detection at high SNRs and constrain the [CII] emission models wit
 h EXCLAIM.
URL:https://www.physics.wisc.edu/events/?id=8795
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