The Anisotropy of the Microwave Background tol= 3500: Mosaic Observations with the Cosmic Background Imager
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منابع مشابه
THE ANISOTROPY OF THE MICROWAVE BACKGROUND TO l = 3500: MOSAIC OBSERVATIONS WITH THE COSMIC BACKGROUND IMAGER
Using the Cosmic Background Imager (CBI), a 13-element interferometer array operating in the 26–36 GHz frequency band, we have observed 40 deg2 of sky in three pairs of fields, each 145
متن کاملTHE ANISOTROPY OF THE MICROWAVE BACKGROUND TO l = 3500: DEEP FIELD OBSERVATIONS WITH THE COSMIC BACKGROUND IMAGER
We report measurements of anisotropy in the cosmic microwave background radiation over the multipole range l ∼ 200 → 3500 with the Cosmic Background Imager based on deep observations of three fields. These results confirm the drop in power with increasing l first reported in earlier measurements with this instrument, and extend the observations of this decline in power out to l ∼ 2000. The decl...
متن کاملExtended Mosaic Observations with the Cosmic Background Imager
Two years of microwave background observations with the Cosmic Background Imager (CBI) have been combined to give a sensitive, high resolution angular power spectrum over the range 400 < l < 3500. This power spectrum has been referenced to a more accurate overall calibration derived from WMAP. The data cover 90 deg including three pointings targeted for deep observations. The uncertainty on the...
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We present the first results of observations of the intrinsic anisotropy of the cosmic microwave background radiation with the Cosmic Background Imager from a site at 5080 m altitude in northern Chile. Our observations show a sharp decrease in Cl in the range l = 400–1500. The broadband amplitudes we have measured are δTband = 58.7+7.7 −6.3 μK for l = 603 +180 −166 and δTband = 29.7 +4.8 −4.2 μ...
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Polarization observations of the cosmic microwave background with the Cosmic Background Imager from September 2002 to May 2004 provide a significant detection of the E-mode polarization and reveal an angular power spectrum of polarized emission showing peaks and valleys that are shifted in phase by half a cycle relative to those of the total intensity spectrum. This key agreement between the ph...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2003
ISSN: 0004-637X,1538-4357
DOI: 10.1086/375508