CMB observations with the Cosmic Background Imager (CBI) Interferometer

Details CMB observations with the Cosmic Background Imager (CBI) Interferometer CMB observations with the Cosmic Background Imager (CBI) Interferometer

2002-10-14

arxiv.org/abs/astro-ph/0210303v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures, to appear in the Proceedings of the XVIII IAP Colloquium `On the nature of dark energy', Paris, 1-5 July 2

Scientific paper

We review the recently published results from the CBI's first season of observations. Angular power spectra of the CMB were obtained from deep integrations of 3 single fields covering a total of 3 deg^2 and 3 shallower surveys of overlapping (mosaiced) fields covering a total of 40 deg^2. The observations show a damping of the anisotropies at high-l as expected from the standard scenarios of recombination. We present parameter estimates obtained from the data and discuss the significance of an excess at l>2000 observed in the deep fields.

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