The Atacama Cosmology Telescope: Cosmological Parameters

Details The Atacama Cosmology Telescope: Cosmological Parameters The Atacama Cosmology Telescope: Cosmological Parameters

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21538408d&link_type=abstract

American Astronomical Society, AAS Meeting #215, #384.08; Bulletin of the American Astronomical Society, Vol. 42, p.599

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The Atacama Cosmology Telescope (ACT) has mapped the angular power spectrum of microwave fluctuations out to arcminute scales. We describe constraints on cosmological parameters from the small-scale CMB power spectrum, including testing inflationary parameters from the primary CMB signal, and limiting the amplitude of fluctuations from the SZ cluster signature. We also discuss prospects for significantly improving our understanding of the cosmological model with the upcoming ACTPol experiment by combining information from small-scale polarized CMB fluctuations with the gravitational lensed CMB signature. This will open up a new path to probe dark energy, neutrino properties, and initial conditions in the early universe.

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