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UID:UW-Physics-Event-1067
DTSTART:20080313T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260409T030759Z
LAST-MODIFIED:20080306T221009Z
LOCATION:4274 Chamberlin Hall
SUMMARY:Finding Clusters of Galaxies Using the South Pole Telescope\, 
 NPAC (Nuclear/Particle/Astro/Cosmo) Forum\, Bradford Benson\, UC Berke
 ley
DESCRIPTION:The South Pole Telescope (SPT) is a 10 meter diameter mill
 imeter wavelength telescope located at the South Pole. It's primary sc
 ience project is to conduct a 4000 square degree survey to find cluste
 rs of galaxies via the Sunyaev-Zel'dovich (SZ) effect\, the inverse Co
 mpton scattering of the CMB off of hot intra-cluster gas. An SZ survey
  of this size should find several thousand galaxy clusters\, which can
  in principle place interesting constraints on the dark energy density
  and equation of state\, as well as produce a host of other secondary 
 science results (e.g. - measurements of small scale primary and other 
 secondary CMB anisotropies\, gravitational lensing of the CMB\, point 
 source catalogs at millimeter wavelengths\, ...). To achieve this requ
 ired over an order of magnitude increase in mapping speed over previou
 s generation millimeter wavelength receivers\, and was accomplished wi
 th the development of a 960 element large format bolometer array. I wi
 ll discuss the design and construction of the SPT receiver\, SPT's cur
 rent project status\, which recently began its second year of observat
 ions\, and future plans for the SPT.
URL:https://www.physics.wisc.edu/events/?id=1067
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