A Measurement of the CMB <EE> Spectrum from the 2003 Flight of BOOMERANG
We report measurements of the CMB polarization power spectra from the 2003 January Antarctic flight of BOOMERANG. The primary results come from 6 days of observation of a patch covering 0.22% of the sky centered near R.A. = 82°.5, decl. = -45°. The observations were made using four pairs of polariza...
| Published in: | The Astrophysical Journal |
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| Main Authors: | , , , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
American Astronomical Society
2006
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| Subjects: | |
| Online Access: | https://authors.library.caltech.edu/24258/ https://authors.library.caltech.edu/24258/1/MONapj06b.pdf https://resolver.caltech.edu/CaltechAUTHORS:20110629-150937119 |
| Summary: | We report measurements of the CMB polarization power spectra from the 2003 January Antarctic flight of BOOMERANG. The primary results come from 6 days of observation of a patch covering 0.22% of the sky centered near R.A. = 82°.5, decl. = -45°. The observations were made using four pairs of polarization-sensitive bolometers operating in bands centered at 145 GHz. Using two independent analysis pipelines, we measure a nonzero <EE> signal in the range 201 < l < 1000 with a significance of 4.8 σ, a 2 σ upper limit of 8.6 μK^2 for any contribution, and a 2 σ upper limit of 7.0 μK^2 for the <EB> spectrum. Estimates of foreground intensity fluctuations and the nondetection of and <EB> signals rule out any significant contribution from Galactic foregrounds. The results are consistent with a ΛCDM cosmology seeded by adiabatic perturbations. We note that this is the first detection of CMB polarization with bolometric detectors. |
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