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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-4081
DTSTART:20160315T203000Z
DURATION:PT1H0M0S
DTSTAMP:20260420T001437Z
LAST-MODIFIED:20160217T144400Z
LOCATION:5280 Chamberlin Hall 
SUMMARY:Galaxy-galaxy lensing for cosmology in the Dark Energy Survey\
 , Theory Seminar (High Energy/Cosmology)\, Juliana Kwan\, University o
 f Pennsylvania
DESCRIPTION:The Dark Energy Survey (DES) is an ongoing photometric sur
 vey that<br>
\nwill cover 5000 sq deg of the Southern sky over five ye
 ars with the<br>
\naim of determining the origin of cosmic acceleratio
 n. Two of the key<br>
\nprobes involved in achieving this goal are the
  large scale clustering<br>
\nof galaxies and weak gravitational lensi
 ng\, which are more powerful<br>
\nwhen taken in combination\, since t
 he dependence on galaxy bias can be<br>
\nbroken in both probes. Using
  the red galaxies identified in the Science<br>
\nVerification area in
  DES\, we have measured the angular clustering and<br>
\ntangential sh
 ear from galaxy-galaxy lensing using red sequence<br>
\nselected galax
 ies. In this talk\, I will present constraints on the<br>
\ndark energ
 y equation of state and the amplitude of clustering from a<br>
\njoint
  analysis of these probes.
URL:https://www.physics.wisc.edu/events/?id=4081
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