The Atacama Cosmology Telescope

Details The Atacama Cosmology Telescope The Atacama Cosmology Telescope

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20924003f&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #240.03; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

4

Scientific paper

We discuss the Atacama Cosmology Telescope (ACT). The goal of ACT is to map the microwave background temperature anisotropy with arcminute resolution. The six-meter telescope will observe from the Chilean Atacama Desert near the ALMA site. The completed focal plane will hold three arrays of one thousand multiplexed transition-edge sensor (TES) bolometers each, operating at 150, 220, and 280 GHz. Our science goals include measuring the slope of the primordial scalar anisotropy power spectrum, the kinetic SZ effect, and the thermal SZ effect. The ACT observations are being coordinated with optical observations to measure, for example, the redshifts of the galaxy clusters identified with the SZ effect.

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