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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Fingerprints of structure formation in the microwave background
Speaker(s): Gilbert Holder
Abstract: Non-linear structures in the universe leave characteristic imprints in the cosmic microwave background. These include Compton scattering (Sunyaev-Zeldovich effects) and gravitational lensing. The South Pole Telescope now has a catalog of massive galaxy clusters that were discovered this way, along with a measure of the background fluctuations generated by smaller clusters, that can be used to chart the growth of structure in the universe.
Date: 28/04/2010 - 9:30 am
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