Characterization of the millimeter-wave polarization of centaurus a with quad

M. Zemcov; P. Ade; J. Bock; M. Bowden; M. L. Brown; G. Cahill; P. G. Castro; S. Church; T. Culverhouse; R. B. Friedman; K. Ganga; W. K. Gear; S. Gupta; J. Hinderks; J. Kovac; A. E. Lange; E. Leitch; S. J. Melhuish; Y. Memari; J. A. Murphy; A. Orlando; C. O'Sullivan; L. Piccirillo; C. Pryke; N. Rajguru; B. Rusholme; R. Schwarz; A. N. Taylor; K. L. Thompson; A. H. Turner; E. Y.S. Wu

doi:10.1088/0004-637X/710/2/1541

Characterization of the millimeter-wave polarization of centaurus a with quad

M. Zemcov, P. Ade, J. Bock, M. Bowden, M. L. Brown, G. Cahill, P. G. Castro, S. Church, T. Culverhouse, R. B. Friedman, K. Ganga, W. K. Gear, S. Gupta, J. Hinderks, J. Kovac, A. E. Lange, E. Leitch, S. J. Melhuish, Y. Memari, J. A. MurphyA. Orlando, C. O'Sullivan, L. Piccirillo, C. Pryke, N. Rajguru, B. Rusholme, R. Schwarz, A. N. Taylor, K. L. Thompson, A. H. Turner, E. Y.S. Wu

Physics and Astronomy (Twin Cities)

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

20 Scopus citations

Abstract

Centaurus (Cen) A represents one of the best candidates for an isolated, compact, highly polarized source that is bright at typical cosmic microwave background (CMB) experiment frequencies. We present measurements of the 4° × 2° region centered on Cen A with QUaD, a CMB polarimeter whose absolute polarization angle is known to an accuracy of 05. Simulations are performed to assess the effect of misestimation of the instrumental parameters on the final measurement and systematic errors due to the field's background structure and temporal variability from Cen A's nuclear region are determined. The total (Q, U) of the inner lobe region is (1.00±0.07(stat.) ± 0.04(sys.), - 1.72±0.06±0.05) Jy at 100GHz and (0.80±0.06±0.06, - 1.40±0.07±0.08) Jy at 150GHz, leading to polarization angles and total errors of -30°0±1°1 and -29°1±1°7. These measurements will allow the use of Cen A as a polarized calibration source for future millimeter experiments.

Original language	English (US)
Pages (from-to)	1541-1550
Number of pages	10
Journal	Astrophysical Journal
Volume	710
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/710/2/1541
State	Published - 2010

Keywords

Cosmic background radiation
Galaxies: individual (Centaurus A)
Instrumentation: polarimeters
Radio continuum: general

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10.1088/0004-637X/710/2/1541

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Zemcov, M., Ade, P., Bock, J., Bowden, M., Brown, M. L., Cahill, G., Castro, P. G., Church, S., Culverhouse, T., Friedman, R. B., Ganga, K., Gear, W. K., Gupta, S., Hinderks, J., Kovac, J., Lange, A. E., Leitch, E., Melhuish, S. J., Memari, Y., ... Wu, E. Y. S. (2010). Characterization of the millimeter-wave polarization of centaurus a with quad. Astrophysical Journal, 710(2), 1541-1550. https://doi.org/10.1088/0004-637X/710/2/1541

Zemcov, M, Ade, P, Bock, J, Bowden, M, Brown, ML, Cahill, G, Castro, PG, Church, S, Culverhouse, T, Friedman, RB, Ganga, K, Gear, WK, Gupta, S, Hinderks, J, Kovac, J, Lange, AE, Leitch, E, Melhuish, SJ, Memari, Y, Murphy, JA, Orlando, A, O'Sullivan, C, Piccirillo, L, Pryke, C, Rajguru, N, Rusholme, B, Schwarz, R, Taylor, AN, Thompson, KL, Turner, AH & Wu, EYS 2010, 'Characterization of the millimeter-wave polarization of centaurus a with quad', Astrophysical Journal, vol. 710, no. 2, pp. 1541-1550. https://doi.org/10.1088/0004-637X/710/2/1541

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title = "Characterization of the millimeter-wave polarization of centaurus a with quad",

abstract = "Centaurus (Cen) A represents one of the best candidates for an isolated, compact, highly polarized source that is bright at typical cosmic microwave background (CMB) experiment frequencies. We present measurements of the 4° × 2° region centered on Cen A with QUaD, a CMB polarimeter whose absolute polarization angle is known to an accuracy of 05. Simulations are performed to assess the effect of misestimation of the instrumental parameters on the final measurement and systematic errors due to the field's background structure and temporal variability from Cen A's nuclear region are determined. The total (Q, U) of the inner lobe region is (1.00±0.07(stat.) ± 0.04(sys.), - 1.72±0.06±0.05) Jy at 100GHz and (0.80±0.06±0.06, - 1.40±0.07±0.08) Jy at 150GHz, leading to polarization angles and total errors of -30°0±1°1 and -29°1±1°7. These measurements will allow the use of Cen A as a polarized calibration source for future millimeter experiments.",

keywords = "Cosmic background radiation, Galaxies: individual (Centaurus A), Instrumentation: polarimeters, Radio continuum: general",

author = "M. Zemcov and P. Ade and J. Bock and M. Bowden and Brown, {M. L.} and G. Cahill and Castro, {P. G.} and S. Church and T. Culverhouse and Friedman, {R. B.} and K. Ganga and Gear, {W. K.} and S. Gupta and J. Hinderks and J. Kovac and Lange, {A. E.} and E. Leitch and Melhuish, {S. J.} and Y. Memari and Murphy, {J. A.} and A. Orlando and C. O'Sullivan and L. Piccirillo and C. Pryke and N. Rajguru and B. Rusholme and R. Schwarz and Taylor, {A. N.} and Thompson, {K. L.} and Turner, {A. H.} and Wu, {E. Y.S.}",

year = "2010",

doi = "10.1088/0004-637X/710/2/1541",

language = "English (US)",

volume = "710",

pages = "1541--1550",

journal = "Astrophysical Journal",

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TY - JOUR

T1 - Characterization of the millimeter-wave polarization of centaurus a with quad

AU - Zemcov, M.

AU - Ade, P.

AU - Bock, J.

AU - Bowden, M.

AU - Brown, M. L.

AU - Cahill, G.

AU - Castro, P. G.

AU - Church, S.

AU - Culverhouse, T.

AU - Friedman, R. B.

AU - Ganga, K.

AU - Gear, W. K.

AU - Gupta, S.

AU - Hinderks, J.

AU - Kovac, J.

AU - Lange, A. E.

AU - Leitch, E.

AU - Melhuish, S. J.

AU - Memari, Y.

AU - Murphy, J. A.

AU - Orlando, A.

AU - O'Sullivan, C.

AU - Piccirillo, L.

AU - Pryke, C.

AU - Rajguru, N.

AU - Rusholme, B.

AU - Schwarz, R.

AU - Taylor, A. N.

AU - Thompson, K. L.

AU - Turner, A. H.

AU - Wu, E. Y.S.

PY - 2010

Y1 - 2010

N2 - Centaurus (Cen) A represents one of the best candidates for an isolated, compact, highly polarized source that is bright at typical cosmic microwave background (CMB) experiment frequencies. We present measurements of the 4° × 2° region centered on Cen A with QUaD, a CMB polarimeter whose absolute polarization angle is known to an accuracy of 05. Simulations are performed to assess the effect of misestimation of the instrumental parameters on the final measurement and systematic errors due to the field's background structure and temporal variability from Cen A's nuclear region are determined. The total (Q, U) of the inner lobe region is (1.00±0.07(stat.) ± 0.04(sys.), - 1.72±0.06±0.05) Jy at 100GHz and (0.80±0.06±0.06, - 1.40±0.07±0.08) Jy at 150GHz, leading to polarization angles and total errors of -30°0±1°1 and -29°1±1°7. These measurements will allow the use of Cen A as a polarized calibration source for future millimeter experiments.

AB - Centaurus (Cen) A represents one of the best candidates for an isolated, compact, highly polarized source that is bright at typical cosmic microwave background (CMB) experiment frequencies. We present measurements of the 4° × 2° region centered on Cen A with QUaD, a CMB polarimeter whose absolute polarization angle is known to an accuracy of 05. Simulations are performed to assess the effect of misestimation of the instrumental parameters on the final measurement and systematic errors due to the field's background structure and temporal variability from Cen A's nuclear region are determined. The total (Q, U) of the inner lobe region is (1.00±0.07(stat.) ± 0.04(sys.), - 1.72±0.06±0.05) Jy at 100GHz and (0.80±0.06±0.06, - 1.40±0.07±0.08) Jy at 150GHz, leading to polarization angles and total errors of -30°0±1°1 and -29°1±1°7. These measurements will allow the use of Cen A as a polarized calibration source for future millimeter experiments.

KW - Cosmic background radiation

KW - Galaxies: individual (Centaurus A)

KW - Instrumentation: polarimeters

KW - Radio continuum: general

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UR - http://www.scopus.com/inward/citedby.url?scp=76949084654&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/710/2/1541

DO - 10.1088/0004-637X/710/2/1541

M3 - Article

AN - SCOPUS:76949084654

SN - 0004-637X

VL - 710

SP - 1541

EP - 1550

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

ER -

Characterization of the millimeter-wave polarization of centaurus a with quad

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