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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-5058
DTSTART:20190318T170000Z
DTEND:20190318T181500Z
DTSTAMP:20260419T085051Z
LAST-MODIFIED:20190304T180217Z
LOCATION:4421 Sterling Hall
SUMMARY:From Cosmology to Galaxy Evolution and Star Formation with Lin
 e Intensity Mapping \, NPAC (Nuclear/Particle/Astro/Cosmo) Forum\, Ada
 m Beardsley\, Arizona State University
DESCRIPTION:Line Intensity Mapping (LIM) is an emerging observational 
 technique with applications ranging from cosmology and fundamental phy
 sics to astrophysical phenomena that drive galaxy evolution and star f
 ormation. By sacrificing resolution in favor of wide-field integrated 
 measurements\, LIM experiments are sensitive to the aggregate contribu
 tions of sources of all magnitudes and diffuse structures. Probing nar
 row atomic and molecular transitions allow for three dimensional measu
 rements which will unlock many orders of magnitude more modes compared
  to those available from the Cosmic Microwave Background. The enormous
  observational volume probed (~80% of thee observable universe) will y
 ield unprecedented insights into early-Universe inflation\, the intera
 ctions between galaxies and their environment during the Epoch of Reio
 nization (EoR)\, and the cosmic history of star formation. <br>
\n<br>
 
\n  I will discuss the current and planned experiments that will fulf
 ill the promise of LIM\, with a focus on high redshift 21cm experiment
 s to probe the EoR. Last year the EDGES collaboration made a first ten
 tative detection of a 21cm absorption profile from the Cosmic Dawn\, a
 nd its unexpected depth shook loose myriad theories related to dark ma
 tter-baryon interactions and excess radio background. This watershed o
 f explanations foreshadows the excitement to come as LIM experiments b
 egin to push the frontiers of cosmology and astrophysics. 
URL:https://www.physics.wisc.edu/events/?id=5058
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