CBI2: Current Status

Details CBI2: Current Status CBI2: Current Status

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.1101s&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #11.01; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

The Cosmic Background Imager is a sensitive 13-element radio interferometer operating at 5070m in the Chilean Andes (the future ALMA site). We have upgraded the CBI's 0.9m dishes with 1.4m dishes, effectively doubling the sensitivity. CBI2's primary science goal is a better measurement of the CMB power spectrum in the ell 2000-3000 range, where previous CBI measurements found an excess of power at 30 GHz over what was expected. We will also observe galaxy clusters and diffuse emission in the Milky Way with CBI2. We present the current status of CBI2, the errors on the CMB spectrum we expect to achieve, and hopefully early results. The CBI is a collaboration between Caltech, CITA, NRAO, MPI-Radioastronomie, Oxford, Manchester, Universidad de Chile, and Universidad de Concepcion.

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