The Atacama Cosmology Telescope: Signatures of Secondary Anisotropies

Details The Atacama Cosmology Telescope: Signatures of Secondary Anisotropies The Atacama Cosmology Telescope: Signatures of Secondary Anisotropies

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21538405d&link_type=abstract

American Astronomical Society, AAS Meeting #215, #384.05; Bulletin of the American Astronomical Society, Vol. 42, p.599

Astronomy and Astrophysics

Astronomy

Scientific paper

The Cosmic Microwave Background (CMB) is expected to be dominated by secondary anisotropies and point source emission on arcminute scales. Secondary anisotropies, especially the gravitational lensing of the CMB and the Sunyaev-Zeldovich effect, carry information about the geometry and growth of structure in the Universe, as well as the properties of the intergalactic medium. The high resolution data from the Atacama Cosmology Telescope (ACT) have the sensitivity to probe the nature of these secondary anisotropies, and disentangle them through their distinctive non-Gaussian signatures on the CMB sky.We present the methods involved, discuss preliminary results and comment on future prospects.

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