Scientific optimization of a ground-based CMB polarization experiment

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dc.creatorBowden, M.
dc.creatorTaylor, A. N.
dc.creatorGanga, K. M.
dc.creatorAde, P. A. R.
dc.creatorBock, J. J.
dc.creatorCahill, G.
dc.creatorCarlstrom, J. E.
dc.creatorChurch, S. E.
dc.creatorGear, W. K.
dc.creatorHinderks, J. R.
dc.creatorHu, W.
dc.creatorKeating, B. G.
dc.creatorKovac, J.
dc.creatorLange, A . E.
dc.creatorLeitch, E. M.
dc.creatorMallie, O. E.
dc.creatorMelhuish, S. J.
dc.creatorMurphy, J. A.
dc.creatorPiccirillo, L.
dc.creatorPryke, C.
dc.creatorRusholme, B. A.
dc.creatorO'Sullivan, C.
dc.creatorThompson, K.
dc.date2003-09-23
dc.date2004-03-01
dc.date.accessioned2026-07-07T11:08:16Z
dc.date.available2026-07-07T11:08:16Z
dc.descriptionWe investigate the science goals achievable with the upcoming generation of ground-based Cosmic Microwave Background polarization experiments and calculate the optimal sky coverage for such an experiment including the effects of foregrounds. We find that with current technology an E-mode measurement will be sample-limited, while a B-mode measurement will be detector-noise-limited. We conclude that a 300 sq deg survey is an optimal compromise for a two-year experiment to measure both E and B-modes, and that ground-based polarization experiments can make an important contribution to B-mode surveys. Focusing on one particular experiment, QUaD, a proposed bolometric polarimeter operating from the South Pole, we find that a ground-based experiment can make a high significance measurement of the acoustic peaks in the E-mode spectrum, 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 a ground-based experiment can improve constraints on the cosmological parameters. We estimate that by combining two years of QUaD data with the four-year WMAP data, an optimized ground-based polarization experiment can improve constraints on cosmological parameters by a factor of two. If the foreground contamination can be reduced, the measurement of the tensor-to-scalar ratio can be improved by up to a factor of six over that obtainable from WMAP alone.
dc.description17 pages, 11 figures replaced with version accepted by MNRAS
dc.identifierhttps://arxiv.org/abs/astro-ph/0309610
dc.identifierhttp://arxiv.org/abs/astro-ph/0309610
dc.identifierMon.Not.Roy.Astron.Soc.349:321,2004
dc.identifierdoi:10.1111/j.1365-2966.2004.07506.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190080
dc.subjectAstrophysics
dc.titleScientific optimization of a ground-based CMB polarization experiment
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