Cosmology Constraints from Sunyaev-Zel'dovich Galaxy Clusters Detected with the Atacama Cosmology Telescope

Details Cosmology Constraints from Sunyaev-Zel'dovich Galaxy Clusters Detected with the Atacama Cosmology Telescope Cosmology Constraints from Sunyaev-Zel'dovich Galaxy Clusters Detected with the Atacama Cosmology Telescope

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21732102s&link_type=abstract

American Astronomical Society, AAS Meeting #217, #321.02; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

For the first time microwave surveys such as the Atacama Cosmology Telescope (ACT) and the South Pole Telescope (SPT) are detecting galaxy clusters through the Sunyaev-Zel'dovich (SZ) effect. Counts of galaxy clusters as a function of mass and redshift provide a powerful probe of structure growth and cosmology. I will discuss constraints on the matter power spectrum amplitude, sigma8, and dark energy equation of state, w, from SZ cluster counts detected with ACT.

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