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Characterization of the Millimeter-Wave Polarization of Centaurus A with QUaD

Zemcov, M. and Ade, P. and Bock, J. and Bowden, M. and Brown, M. L. and Cahill, G. and Castro, P. G. and Church, S. and Culverhouse, T. and Friedman, R. B. and Ganga, K. and Gear, W. K. and Gupta, S. and Hinderks, J. and Kovac, J. and Lange, A. E. and Leitch, E. and Melhuish, S. J. and Memari, Y. and Murphy, J. A. and Orlando, A. and O'Sullivan, C. and Piccirillo, L. and Pryke, C. and Rajguru, N. and Rusholme, B. and Schwarz, R. and Taylor, A. N. and Thompson, K. L. and Turner, A. H. and Wu, E. Y. S. (2010) Characterization of the Millimeter-Wave Polarization of Centaurus A with QUaD. Astrophysical Journal, 710 (2). pp. 1541-1550. ISSN 0004-637X. http://resolver.caltech.edu/CaltechAUTHORS:20100224-112332982

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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 0°.5. 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 100 GHz and (0.80 ± 0.06 ± 0.06, – 1.40 ± 0.07 ± 0.08) Jy at 150 GHz, 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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/0004-637X/710/2/1541DOIUNSPECIFIED
http://www.iop.org/EJ/abstract/0004-637X/710/2/1541/PublisherUNSPECIFIED
ORCID:
AuthorORCID
Zemcov, M.0000-0001-8253-1451
Additional Information:© 2010 American Astronomical Society. Print publication: Issue 2 (2010 February 20); received 2009 August 17; accepted for publication 2009 December 30; published 2010 February 1. QUaD is funded by the National Science Foundation in the USA, through grants ANT-0338138, ANT-0338335, and ANT- 0338238, by the Science and Technology Facilities Council (STFC) in the UK and by the Science Foundation Ireland. The BOOMERanG collaboration kindly allowed the use of their CMB maps for our calibration purposes. M.Z. acknowledges support from aNASA Postdoctoral Fellowship. P.G.C. acknowledges funding from the Portuguese FCT. S.E.C. acknowledges support from a Stanford Terman Fellowship. J.R.H. acknowledges the support of an NSF Graduate Research Fellowship, a Stanford Graduate Fellowship, and a NASA Postdoctoral Fellowship. Y.M. acknowledges support from a SUPA Prize studentship. C.P. acknowledges partial support from the Kavli Institute for Cosmological Physics through the grant NSF PHY-0114422. E.Y.W. acknowledges receipt of an NDSEG fellowship.
Funders:
Funding AgencyGrant Number
NASA Postdoctoral FellowshipUNSPECIFIED
Portuguese Fundação para a Ciência e a Tecnologia (FCT)UNSPECIFIED
Stanford Terman FellowshipUNSPECIFIED
NSF Graduate Research FellowshipUNSPECIFIED
Stanford Graduate FellowshipUNSPECIFIED
SUPA Prize studentshipUNSPECIFIED
Kavli Institute for Cosmological PhysicsUNSPECIFIED
NSFPHY-0114422
National Defense Science and Engineering Graduate (NDSEG) fellowshipUNSPECIFIED
Subject Keywords:cosmic background radiation; galaxies: individual (Centaurus A); instrumentation: polarimeters; radio continuum: general
Record Number:CaltechAUTHORS:20100224-112332982
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20100224-112332982
Official Citation: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 (QUaD collaboration) 2010 ApJ 710 1541-1550 doi: 10.1088/0004-637X/710/2/1541
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:17581
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:24 Feb 2010 21:19
Last Modified:30 Jan 2017 21:04

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