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CCAPP Seminar - Blake Sherwin (Princeton) "CMB Lensing Measurements: Mapping Dark Matter with ACT and ACTPol"

September 11, 2012
All Day
PRB 4138

CMB lensing measurements use the cosmic microwave background to map the projected distribution of dark matter out to high redshifts. I will describe the first detection of the CMB lensing power spectrum with the Atacama Cosmology Telescope (ACT) and its cosmological implications, and will show results from cross-correlations of ACT CMB lensing maps with quasars, galaxies and other tracers of dark matter. I will then explain the great scientific potential of upcoming polarization lensing measurements with ACTPol, and will discuss the development of a lensing pipeline for this experiment.

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