Scientific optimization of a ground-based CMB polarization experiment
We investigate the science goals achievable with the upcoming generation of ground-based cosmic microwave background polarization experiments, focusing on one particular experiment, QUaD [QUEST (Q and U Extragalactic Submillimetre Telescope) and DASI (Degree Angular Scale Interferometer)], a propose...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Oxford University Press
2004
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ftcaltechauth:oai:authors.library.caltech.edu:100998 2023-05-15T18:23:03+02:00 Scientific optimization of a ground-based CMB polarization experiment Bowden, M. Taylor, A. N. Ganga, K. M. Ade, P. A. R. Bock, J. J. Cahill, G. Carlstrom, J. E. Church, S. E. Gear, W. K. Hinderks, J. R. Hu, W. Keating, B. G. Kovac, J. Lange, A. E. Leitch, E. M. Maffei, B. Mallie, O. E. Melhuish, S. J. Murphy, J. A. Pisano, G. Piccirillo, L. Pryke, C. Rusholme, B. A. O'Sullivan, C. Thompson, K. 2004-03 application/pdf https://authors.library.caltech.edu/100998/ https://authors.library.caltech.edu/100998/1/349-1-321.pdf https://authors.library.caltech.edu/100998/2/0309610.pdf https://resolver.caltech.edu/CaltechAUTHORS:20200130-075505900 en eng Oxford University Press https://authors.library.caltech.edu/100998/1/349-1-321.pdf https://authors.library.caltech.edu/100998/2/0309610.pdf Bowden, M. and Taylor, A. N. and Ganga, K. M. and Ade, P. A. R. and Bock, J. J. and Cahill, G. and Carlstrom, J. E. and Church, S. E. and Gear, W. K. and Hinderks, J. R. and Hu, W. and Keating, B. G. and Kovac, J. and Lange, A. E. and Leitch, E. M. and Maffei, B. and Mallie, O. E. and Melhuish, S. J. and Murphy, J. A. and Pisano, G. and Piccirillo, L. and Pryke, C. and Rusholme, B. A. and O'Sullivan, C. and Thompson, K. (2004) Scientific optimization of a ground-based CMB polarization experiment. Monthly Notices of the Royal Astronomical Society, 349 (1). pp. 321-335. ISSN 1365-2966. doi:10.1111/j.1365-2966.2004.07506.x. https://resolver.caltech.edu/CaltechAUTHORS:20200130-075505900 <https://resolver.caltech.edu/CaltechAUTHORS:20200130-075505900> other Article PeerReviewed 2004 ftcaltechauth https://doi.org/10.1111/j.1365-2966.2004.07506.x 2021-11-18T18:53:29Z We investigate the science goals achievable with the upcoming generation of ground-based cosmic microwave background polarization experiments, focusing on one particular experiment, QUaD [QUEST (Q and U Extragalactic Submillimetre Telescope) and DASI (Degree Angular Scale Interferometer)], a proposed bolometric polarimeter operating from the South Pole. We calculate the optimal sky coverage for this experiment, including the effects of foregrounds and gravitational lensing. We find that an E-mode measurement will be sample-limited, whereas a B-mode measurement will be detector-noise-limited. We conclude that a 300 deg² survey is an optimal compromise for a 2-yr experiment to measure both E and B modes, and that a ground-based polarization experiment can make an important contribution to B-mode surveys. QUaD can make a high significance measurement of the acoustic peaks in the E-mode spectrum, over a multipole range of 25 < ℓ < 2500, and will be able to detect the gravitational lensing signal in the B-mode spectrum. Such an experiment could also directly detect the gravitational wave component of the B-mode spectrum if the amplitude of the signal is close to current upper limits. We also investigate how QUaD can improve constraints on the cosmological parameters. We estimate that combining two years of QUaD data with the 4-yr Wilkinson Microwave Anisotropy Probe (WMAP) data can improve constraints on Ω_bh², Ω_mh², h, r and n_s by a factor of 2. If the foreground contamination can be reduced, the measurement of r can be improved by up to a factor of 6 over that obtainable from WMAP alone. These improved accuracies will place strong constraints on the potential of the inflaton field. Article in Journal/Newspaper South pole Caltech Authors (California Institute of Technology) South Pole Wilkinson ENVELOPE(-66.200,-66.200,-66.817,-66.817) Monthly Notices of the Royal Astronomical Society 349 1 321 335 |
institution |
Open Polar |
collection |
Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
language |
English |
description |
We investigate the science goals achievable with the upcoming generation of ground-based cosmic microwave background polarization experiments, focusing on one particular experiment, QUaD [QUEST (Q and U Extragalactic Submillimetre Telescope) and DASI (Degree Angular Scale Interferometer)], a proposed bolometric polarimeter operating from the South Pole. We calculate the optimal sky coverage for this experiment, including the effects of foregrounds and gravitational lensing. We find that an E-mode measurement will be sample-limited, whereas a B-mode measurement will be detector-noise-limited. We conclude that a 300 deg² survey is an optimal compromise for a 2-yr experiment to measure both E and B modes, and that a ground-based polarization experiment can make an important contribution to B-mode surveys. QUaD can make a high significance measurement of the acoustic peaks in the E-mode spectrum, over a multipole range of 25 < ℓ < 2500, and will be able to detect the gravitational lensing signal in the B-mode spectrum. Such an experiment could also directly detect the gravitational wave component of the B-mode spectrum if the amplitude of the signal is close to current upper limits. We also investigate how QUaD can improve constraints on the cosmological parameters. We estimate that combining two years of QUaD data with the 4-yr Wilkinson Microwave Anisotropy Probe (WMAP) data can improve constraints on Ω_bh², Ω_mh², h, r and n_s by a factor of 2. If the foreground contamination can be reduced, the measurement of r can be improved by up to a factor of 6 over that obtainable from WMAP alone. These improved accuracies will place strong constraints on the potential of the inflaton field. |
format |
Article in Journal/Newspaper |
author |
Bowden, M. Taylor, A. N. Ganga, K. M. Ade, P. A. R. Bock, J. J. Cahill, G. Carlstrom, J. E. Church, S. E. Gear, W. K. Hinderks, J. R. Hu, W. Keating, B. G. Kovac, J. Lange, A. E. Leitch, E. M. Maffei, B. Mallie, O. E. Melhuish, S. J. Murphy, J. A. Pisano, G. Piccirillo, L. Pryke, C. Rusholme, B. A. O'Sullivan, C. Thompson, K. |
spellingShingle |
Bowden, M. Taylor, A. N. Ganga, K. M. Ade, P. A. R. Bock, J. J. Cahill, G. Carlstrom, J. E. Church, S. E. Gear, W. K. Hinderks, J. R. Hu, W. Keating, B. G. Kovac, J. Lange, A. E. Leitch, E. M. Maffei, B. Mallie, O. E. Melhuish, S. J. Murphy, J. A. Pisano, G. Piccirillo, L. Pryke, C. Rusholme, B. A. O'Sullivan, C. Thompson, K. Scientific optimization of a ground-based CMB polarization experiment |
author_facet |
Bowden, M. Taylor, A. N. Ganga, K. M. Ade, P. A. R. Bock, J. J. Cahill, G. Carlstrom, J. E. Church, S. E. Gear, W. K. Hinderks, J. R. Hu, W. Keating, B. G. Kovac, J. Lange, A. E. Leitch, E. M. Maffei, B. Mallie, O. E. Melhuish, S. J. Murphy, J. A. Pisano, G. Piccirillo, L. Pryke, C. Rusholme, B. A. O'Sullivan, C. Thompson, K. |
author_sort |
Bowden, M. |
title |
Scientific optimization of a ground-based CMB polarization experiment |
title_short |
Scientific optimization of a ground-based CMB polarization experiment |
title_full |
Scientific optimization of a ground-based CMB polarization experiment |
title_fullStr |
Scientific optimization of a ground-based CMB polarization experiment |
title_full_unstemmed |
Scientific optimization of a ground-based CMB polarization experiment |
title_sort |
scientific optimization of a ground-based cmb polarization experiment |
publisher |
Oxford University Press |
publishDate |
2004 |
url |
https://authors.library.caltech.edu/100998/ https://authors.library.caltech.edu/100998/1/349-1-321.pdf https://authors.library.caltech.edu/100998/2/0309610.pdf https://resolver.caltech.edu/CaltechAUTHORS:20200130-075505900 |
long_lat |
ENVELOPE(-66.200,-66.200,-66.817,-66.817) |
geographic |
South Pole Wilkinson |
geographic_facet |
South Pole Wilkinson |
genre |
South pole |
genre_facet |
South pole |
op_relation |
https://authors.library.caltech.edu/100998/1/349-1-321.pdf https://authors.library.caltech.edu/100998/2/0309610.pdf Bowden, M. and Taylor, A. N. and Ganga, K. M. and Ade, P. A. R. and Bock, J. J. and Cahill, G. and Carlstrom, J. E. and Church, S. E. and Gear, W. K. and Hinderks, J. R. and Hu, W. and Keating, B. G. and Kovac, J. and Lange, A. E. and Leitch, E. M. and Maffei, B. and Mallie, O. E. and Melhuish, S. J. and Murphy, J. A. and Pisano, G. and Piccirillo, L. and Pryke, C. and Rusholme, B. A. and O'Sullivan, C. and Thompson, K. (2004) Scientific optimization of a ground-based CMB polarization experiment. Monthly Notices of the Royal Astronomical Society, 349 (1). pp. 321-335. ISSN 1365-2966. doi:10.1111/j.1365-2966.2004.07506.x. https://resolver.caltech.edu/CaltechAUTHORS:20200130-075505900 <https://resolver.caltech.edu/CaltechAUTHORS:20200130-075505900> |
op_rights |
other |
op_doi |
https://doi.org/10.1111/j.1365-2966.2004.07506.x |
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Monthly Notices of the Royal Astronomical Society |
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349 |
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1 |
container_start_page |
321 |
op_container_end_page |
335 |
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