DASI Three-Year Cosmic Microwave Background Polarization Results
We present the analysis of the complete 3-year data set obtained with the Degree Angular Scale Interferometer (DASI) polarization experiment, operating from the Amundsen-Scott South Pole research station. Additional data obtained at the end of the 2002 Austral winter and throughout the 2003 season w...
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ftdatacite:10.48550/arxiv.astro-ph/0409357 2023-05-15T13:24:26+02:00 DASI Three-Year Cosmic Microwave Background Polarization Results Leitch, Erik M. Kovac, J. M. Halverson, N. W. Carlstrom, J. E. Pryke, C. Smith, M. W. E. 2004 https://dx.doi.org/10.48550/arxiv.astro-ph/0409357 https://arxiv.org/abs/astro-ph/0409357 unknown arXiv https://dx.doi.org/10.1086/428825 Assumed arXiv.org perpetual, non-exclusive license to distribute this article for submissions made before January 2004 http://arxiv.org/licenses/assumed-1991-2003/ Astrophysics astro-ph FOS Physical sciences article-journal Article ScholarlyArticle Text 2004 ftdatacite https://doi.org/10.48550/arxiv.astro-ph/0409357 https://doi.org/10.1086/428825 2022-04-01T16:21:46Z We present the analysis of the complete 3-year data set obtained with the Degree Angular Scale Interferometer (DASI) polarization experiment, operating from the Amundsen-Scott South Pole research station. Additional data obtained at the end of the 2002 Austral winter and throughout the 2003 season were added to the data from which the first detection of polarization of the cosmic microwave background radiation was reported. The analysis of the combined data supports, with increased statistical power, all of the conclusions drawn from the initial data set. In particular, the detection of E-mode polarization is increased to 6.3 sigma confidence level, TE cross-polarization is detected at 2.9 sigma, and B-mode polarization is consistent with zero, with an upper limit well below the level of the detected E-mode polarization. The results are in excellent agreement with the predictions of the cosmological model that has emerged from CMB temperature measurements. The analysis also demonstrates that contamination of the data by known sources of foreground emission is insignificant. : 13 pages Latex, 10 figures, submitted to ApJ Text Amundsen-Scott South pole DataCite Metadata Store (German National Library of Science and Technology) Austral South Pole Amundsen-Scott ENVELOPE(0.000,0.000,-90.000,-90.000) |
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topic |
Astrophysics astro-ph FOS Physical sciences |
spellingShingle |
Astrophysics astro-ph FOS Physical sciences Leitch, Erik M. Kovac, J. M. Halverson, N. W. Carlstrom, J. E. Pryke, C. Smith, M. W. E. DASI Three-Year Cosmic Microwave Background Polarization Results |
topic_facet |
Astrophysics astro-ph FOS Physical sciences |
description |
We present the analysis of the complete 3-year data set obtained with the Degree Angular Scale Interferometer (DASI) polarization experiment, operating from the Amundsen-Scott South Pole research station. Additional data obtained at the end of the 2002 Austral winter and throughout the 2003 season were added to the data from which the first detection of polarization of the cosmic microwave background radiation was reported. The analysis of the combined data supports, with increased statistical power, all of the conclusions drawn from the initial data set. In particular, the detection of E-mode polarization is increased to 6.3 sigma confidence level, TE cross-polarization is detected at 2.9 sigma, and B-mode polarization is consistent with zero, with an upper limit well below the level of the detected E-mode polarization. The results are in excellent agreement with the predictions of the cosmological model that has emerged from CMB temperature measurements. The analysis also demonstrates that contamination of the data by known sources of foreground emission is insignificant. : 13 pages Latex, 10 figures, submitted to ApJ |
format |
Text |
author |
Leitch, Erik M. Kovac, J. M. Halverson, N. W. Carlstrom, J. E. Pryke, C. Smith, M. W. E. |
author_facet |
Leitch, Erik M. Kovac, J. M. Halverson, N. W. Carlstrom, J. E. Pryke, C. Smith, M. W. E. |
author_sort |
Leitch, Erik M. |
title |
DASI Three-Year Cosmic Microwave Background Polarization Results |
title_short |
DASI Three-Year Cosmic Microwave Background Polarization Results |
title_full |
DASI Three-Year Cosmic Microwave Background Polarization Results |
title_fullStr |
DASI Three-Year Cosmic Microwave Background Polarization Results |
title_full_unstemmed |
DASI Three-Year Cosmic Microwave Background Polarization Results |
title_sort |
dasi three-year cosmic microwave background polarization results |
publisher |
arXiv |
publishDate |
2004 |
url |
https://dx.doi.org/10.48550/arxiv.astro-ph/0409357 https://arxiv.org/abs/astro-ph/0409357 |
long_lat |
ENVELOPE(0.000,0.000,-90.000,-90.000) |
geographic |
Austral South Pole Amundsen-Scott |
geographic_facet |
Austral South Pole Amundsen-Scott |
genre |
Amundsen-Scott South pole |
genre_facet |
Amundsen-Scott South pole |
op_relation |
https://dx.doi.org/10.1086/428825 |
op_rights |
Assumed arXiv.org perpetual, non-exclusive license to distribute this article for submissions made before January 2004 http://arxiv.org/licenses/assumed-1991-2003/ |
op_doi |
https://doi.org/10.48550/arxiv.astro-ph/0409357 https://doi.org/10.1086/428825 |
_version_ |
1766379689304129536 |