Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.4903h&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #49.03; Bulletin of the American Astronomical Society, V
Astronomy and Astrophysics
Astronomy
Scientific paper
The CAPMAP array of correlation polarimeters was expanded to its full design after a prototype experiment successfully reported in 2004 a 2σ detection of CMB E-mode polarization anisotropy consistent with the concordance model at l ≈1000. After an enlargement of the 90-GHz array from four to twelve receivers and the addition of a comparably sensitive array of four 40-GHz receivers, the experiment was re-deployed on the Crawford Hill 7-Meter Antenna in Holmdel, NJ for the Winter 2004-Spring 2005 observing season. The 16 polarimeters each observed for ≈1200 hours after cuts in a ring scan around the NCP, covering a patch of diameter 1.5°. Analysis of the subsequent data set, which has a net five-fold improvement in sensitivity, will be complete by the end of 2006 and will yield a significantly stronger result, improving current knowledge of the EE power spectrum in the range 500 ≤ l≤ 1500 and shedding new light on astronomical foregrounds.
CAPMAP Collaboration
Hyatt Lewis D.
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