Mathematics – Logic
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21336406s&link_type=abstract
American Astronomical Society, AAS Meeting #213, #364.06; Bulletin of the American Astronomical Society, Vol. 41, p.515
Mathematics
Logic
Scientific paper
We present final results on the angular power spectrum of total intensity anisotropies in the Microwave Background from the Cosmic Background Imager (CBI). Our analysis includes all intrinsic anisotropy data collected during 4.5 years of CBI operations, and benefits from an improved maximum likelihood analysis pipeline. It also includes results from a 30 GHz foreground survey conducted with the Green Bank Telescope (GBT) which places significant constraints on the possible contamination due to foreground point sources. These data confirm, at $\sim 3 \sigma$, the existence of an excess of power over intrinsic CMB anisotropy on small angular scales ($\ell > 1800$). We also present a full cosmological parameter analysis of the new CBI power spectrum, the WMAP 5-year data, and the latest ACBAR data, self-consistently including the SZE foreground signal in the analysis.
CBI Collaboration
Sievers Jonathan Leroy
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