Scientific optimization of a ground-based CMB polarization experiment

M. Bowden; A. N. Taylor; K. M. Ganga; P. A R Ade; J. J. Bock; G. Cahill; J. E. Carlstrom; S. E. Church; W. K. Gear; J. R. Hinderks; W. Hu; B. G. Keating; J. Kovac; A. E. Lange; E. M. Leitch; B. Maffei; O. E. Mallie; S. J. Melhuish; J. A. Murphy; G. Pisano; L. Piccirillo; C. Pryke; B. A. Rusholme; C. O'Sullivan; K. Thompson

doi:10.1111/j.1365-2966.2004.07506.x

Scientific optimization of a ground-based CMB polarization experiment

M. Bowden, A. N. Taylor, K. M. Ganga, P. A R Ade, J. J. Bock, G. Cahill, J. E. Carlstrom, S. E. Church, W. K. Gear, J. R. Hinderks, W. Hu, B. G. Keating, J. Kovac, A. E. Lange, E. M. Leitch, B. Maffei, O. E. Mallie, S. J. Melhuish, J. A. Murphy, G. PisanoL. Piccirillo, C. Pryke, B. A. Rusholme, C. O'Sullivan, K. Thompson

Research output: Contribution to journal › Article › peer-review

Abstract

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 deg 2 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 bh 2, Ω mh 2, 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.

Original language	English
Pages (from-to)	321-335
Number of pages	14
Journal	Monthly Notices of the Royal Astronomical Society
Volume	349
Issue number	1
DOIs	https://doi.org/10.1111/j.1365-2966.2004.07506.x
Publication status	Published - 21 Mar 2004

Keywords

Cosmic microwave background
Cosmological parameters
Methods: observational
Polarization
Techniques: polarimetric

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10.1111/j.1365-2966.2004.07506.x

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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., ... Thompson, K. (2004). Scientific optimization of a ground-based CMB polarization experiment. Monthly Notices of the Royal Astronomical Society, 349(1), 321-335. https://doi.org/10.1111/j.1365-2966.2004.07506.x

@article{ac810e7899604d0c844e79f99723487e,

title = "Scientific optimization of a ground-based CMB polarization experiment",

abstract = "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 deg 2 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 bh 2, Ω mh 2, 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.",

keywords = "Cosmic microwave background, Cosmological parameters, Methods: observational, Polarization, Techniques: polarimetric",

author = "M. Bowden and Taylor, {A. N.} and Ganga, {K. M.} and Ade, {P. A R} and Bock, {J. J.} and G. Cahill and Carlstrom, {J. E.} and Church, {S. E.} and Gear, {W. K.} and Hinderks, {J. R.} and W. Hu and Keating, {B. G.} and J. Kovac and Lange, {A. E.} and Leitch, {E. M.} and B. Maffei and Mallie, {O. E.} and Melhuish, {S. J.} and Murphy, {J. A.} and G. Pisano and L. Piccirillo and C. Pryke and Rusholme, {B. A.} and C. O'Sullivan and K. Thompson",

year = "2004",

month = mar,

day = "21",

doi = "10.1111/j.1365-2966.2004.07506.x",

language = "English",

volume = "349",

pages = "321--335",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "1365-2966",

publisher = "Oxford University Press",

number = "1",

}

Bowden, M, Taylor, AN, Ganga, KM, Ade, PAR, Bock, JJ, Cahill, G, Carlstrom, JE, Church, SE, Gear, WK, Hinderks, JR, Hu, W, Keating, BG, Kovac, J, Lange, AE, Leitch, EM, Maffei, B, Mallie, OE, Melhuish, SJ, Murphy, JA, Pisano, G, Piccirillo, L, Pryke, C, Rusholme, BA, O'Sullivan, C & Thompson, K 2004, 'Scientific optimization of a ground-based CMB polarization experiment', Monthly Notices of the Royal Astronomical Society, vol. 349, no. 1, pp. 321-335. https://doi.org/10.1111/j.1365-2966.2004.07506.x

TY - JOUR

T1 - Scientific optimization of a ground-based CMB polarization experiment

AU - Bowden, M.

AU - Taylor, A. N.

AU - Ganga, K. M.

AU - Ade, P. A R

AU - Bock, J. J.

AU - Cahill, G.

AU - Carlstrom, J. E.

AU - Church, S. E.

AU - Gear, W. K.

AU - Hinderks, J. R.

AU - Hu, W.

AU - Keating, B. G.

AU - Kovac, J.

AU - Lange, A. E.

AU - Leitch, E. M.

AU - Maffei, B.

AU - Mallie, O. E.

AU - Melhuish, S. J.

AU - Murphy, J. A.

AU - Pisano, G.

AU - Piccirillo, L.

AU - Pryke, C.

AU - Rusholme, B. A.

AU - O'Sullivan, C.

AU - Thompson, K.

PY - 2004/3/21

Y1 - 2004/3/21

N2 - 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 deg 2 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 bh 2, Ω mh 2, 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.

AB - 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 deg 2 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 bh 2, Ω mh 2, 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.

KW - Cosmic microwave background

KW - Cosmological parameters

KW - Methods: observational

KW - Polarization

KW - Techniques: polarimetric

U2 - 10.1111/j.1365-2966.2004.07506.x

DO - 10.1111/j.1365-2966.2004.07506.x

M3 - Article

SN - 1365-2966

VL - 349

SP - 321

EP - 335

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

Scientific optimization of a ground-based CMB polarization experiment

Abstract

Keywords

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