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PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-2918
DTSTART:20130124T213000Z
DURATION:PT1H0M0S
DTSTAMP:20260412T060939Z
LAST-MODIFIED:20130114T200338Z
LOCATION:4421 Sterling Hall
SUMMARY:Exploring Fundamental Physics with the Cosmic Microwave Backgr
 ound: New Results from the South Pole Telescope\, WIPAC Seminar\, Brad
 ford Benson\, University of Chicago
DESCRIPTION:The cosmic microwave background (CMB) is revolutionizing o
 ur understanding of the Universe.  The CMB is the most powerful piece 
 of evidence that we live in a geometrically flat Universe\, dominated 
 by non-baryonic cold dark matter and dark energy.  Even with this basi
 c cosmological model established\, there are still many outstanding qu
 estions: What is dark energy? What are the neutrino masses? Are there 
 missing standard model particles that we can detect cosmologically? Di
 d Inflation happen\, and what physics was responsible for it?  The CMB
  remarkably is imprinted with information regarding each of these ques
 tions. In addition\, the mm-wave CMB data is opening a new window into
  the extragalactic sky\, simultaneously providing large catalogs of ma
 ssive galaxy clusters\, high-redshift lensed galaxies\, and other mm-w
 ave bright sources.  I will present recent results from the South Pole
  Telescope\, a 10-meter mm-wavelength telescope which recently complet
 ed a survey of 2500 sq. deg. of the sky with unprecedented depth and a
 ngular resolution.  In particular\, I will highlight SPT measurements 
 of the CMB power spectrum\, the Sunyaev-Zel'dovich galaxy cluster cata
 log\, and the cosmological implications of the SPT data\, including it
 s constraints on dark energy\, the sum of the neutrino masses\, and th
 e number of relativistic particle species.<br>
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\nNote: this is 
 a joint WIPAC Seminar - Astronomy Colloquium.<br>
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URL:https://www.physics.wisc.edu/events/?id=2918
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