Measuring Polarization with DASI
We describe an experiment to measure the polarization of the Cosmic Microwave Background (CMB) with the Degree Angular Scale Interferometer (DASI), a compact microwave interferometer optimized to detect CMB anisotropy at multipoles 140 to 900. The telescope has operated at the Amundsen-Scott South P...
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ftcern:oai:cds.cern.ch:582471 2023-05-15T13:24:25+02:00 Measuring Polarization with DASI Leitch, E M Kovács, J M Pryke, C L Reddall, B Sandberg, E S Dragovan, M Carlstrom, J E Halverson, N W Holzapfel, W L 2002-09-23 https://doi.org/10.1038/nature01271 http://cds.cern.ch/record/582471 eng eng doi:10.1038/nature01271 http://cds.cern.ch/record/582471 astro-ph/0209476 oai:cds.cern.ch:582471 Astrophysics and Astronomy 2002 ftcern https://doi.org/10.1038/nature01271 2018-07-28T05:41:40Z We describe an experiment to measure the polarization of the Cosmic Microwave Background (CMB) with the Degree Angular Scale Interferometer (DASI), a compact microwave interferometer optimized to detect CMB anisotropy at multipoles 140 to 900. The telescope has operated at the Amundsen-Scott South Pole research station since 2000 January. The telescope was retrofit as a polarimeter during the 2000--2001 austral summer, and throughout the 2001 and 2002 austral winters has made observations of the CMB with sensitivity to all four Stokes parameters. The telescope performance has been extensively characterized through observations of artificial sources, the Moon, and polarized and unpolarized Galactic sources. In 271 days of observation, DASI has differenced the CMB fluctuations in two fields to an rms noise level of 2.8 uK. Other/Unknown Material Amundsen-Scott South pole CERN Document Server (CDS) Amundsen-Scott ENVELOPE(0.000,0.000,-90.000,-90.000) Austral South Pole Nature 420 6917 763 771 |
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Open Polar |
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CERN Document Server (CDS) |
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ftcern |
language |
English |
topic |
Astrophysics and Astronomy |
spellingShingle |
Astrophysics and Astronomy Leitch, E M Kovács, J M Pryke, C L Reddall, B Sandberg, E S Dragovan, M Carlstrom, J E Halverson, N W Holzapfel, W L Measuring Polarization with DASI |
topic_facet |
Astrophysics and Astronomy |
description |
We describe an experiment to measure the polarization of the Cosmic Microwave Background (CMB) with the Degree Angular Scale Interferometer (DASI), a compact microwave interferometer optimized to detect CMB anisotropy at multipoles 140 to 900. The telescope has operated at the Amundsen-Scott South Pole research station since 2000 January. The telescope was retrofit as a polarimeter during the 2000--2001 austral summer, and throughout the 2001 and 2002 austral winters has made observations of the CMB with sensitivity to all four Stokes parameters. The telescope performance has been extensively characterized through observations of artificial sources, the Moon, and polarized and unpolarized Galactic sources. In 271 days of observation, DASI has differenced the CMB fluctuations in two fields to an rms noise level of 2.8 uK. |
author |
Leitch, E M Kovács, J M Pryke, C L Reddall, B Sandberg, E S Dragovan, M Carlstrom, J E Halverson, N W Holzapfel, W L |
author_facet |
Leitch, E M Kovács, J M Pryke, C L Reddall, B Sandberg, E S Dragovan, M Carlstrom, J E Halverson, N W Holzapfel, W L |
author_sort |
Leitch, E M |
title |
Measuring Polarization with DASI |
title_short |
Measuring Polarization with DASI |
title_full |
Measuring Polarization with DASI |
title_fullStr |
Measuring Polarization with DASI |
title_full_unstemmed |
Measuring Polarization with DASI |
title_sort |
measuring polarization with dasi |
publishDate |
2002 |
url |
https://doi.org/10.1038/nature01271 http://cds.cern.ch/record/582471 |
long_lat |
ENVELOPE(0.000,0.000,-90.000,-90.000) |
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Amundsen-Scott Austral South Pole |
geographic_facet |
Amundsen-Scott Austral South Pole |
genre |
Amundsen-Scott South pole |
genre_facet |
Amundsen-Scott South pole |
op_relation |
doi:10.1038/nature01271 http://cds.cern.ch/record/582471 astro-ph/0209476 oai:cds.cern.ch:582471 |
op_doi |
https://doi.org/10.1038/nature01271 |
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Nature |
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420 |
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6917 |
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763 |
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771 |
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1766379555769024512 |