Theory Seminar (High Energy/Cosmology)

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Events During the Week of March 13th through March 20th, 2016

Monday, March 14th, 2016

No events scheduled

Tuesday, March 15th, 2016

Galaxy-galaxy lensing for cosmology in the Dark Energy Survey
Time: 3:30 pm
Place: 5280 Chamberlin Hall
Speaker: Juliana Kwan, University of Pennsylvania
Abstract: The Dark Energy Survey (DES) is an ongoing photometric survey that
will cover 5000 sq deg of the Southern sky over five years with the
aim of determining the origin of cosmic acceleration. Two of the key
probes involved in achieving this goal are the large scale clustering
of galaxies and weak gravitational lensing, which are more powerful
when taken in combination, since the dependence on galaxy bias can be
broken in both probes. Using the red galaxies identified in the Science
Verification area in DES, we have measured the angular clustering and
tangential shear from galaxy-galaxy lensing using red sequence
selected galaxies. In this talk, I will present constraints on the
dark energy equation of state and the amplitude of clustering from a
joint analysis of these probes.
Host: Amol Upadhye
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Wednesday, March 16th, 2016

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Thursday, March 17th, 2016

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Friday, March 18th, 2016

No events scheduled