Absolute polarization angle calibration using polarized diffuse Galactic emission observed by BICEP

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Absolute polarization angle calibration using polarized diffuse Galactic emission observed by BICEP

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Title: Absolute polarization angle calibration using polarized diffuse Galactic emission observed by BICEP
Author: Matsumura, Tomotake; Ade, Peter; Barkats, Denis; Barron, Darcy; Battle, John O.; Bierman, Evan M.; Bock, James J.; Chiang, H. Cynthia; Crill, Brendan P.; Dowell, C. Darren; Duband, Lionel; Hivon, Eric F.; Holzapfel, William L.; Hristov, Viktor V.; Jones, William C.; Keating, Brian G.; Kovac, John M; Kuo, Chao-lin; Lange, Andrew E.; Leitch, Erik M.; Mason, Peter V.; Nguyen, Hien T.; Ponthieu, Nicolas; Pryke, Clement L.; Richter, Steffen; Rocha, Graca M.; Takahashi, Yuki D.; Yoon, Ki Won

Note: Order does not necessarily reflect citation order of authors.

Citation: Matsumura, Tomotake, Peter Ade, Denis Barkats, Darcy Barron, John O. Battle, Evan M. Bierman, James J. Bock et al. 2010. "Absolute polarization angle calibration using polarized diffuse Galactic emission observed by BICEP." In Proceedings of SPIE Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, San Diego, California, June 27, 2010: 77412O. doi:10.1117/12.856855
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Abstract: We present a method of cross-calibrating the polarization angle of a polarimeter using Bicep Galactic observations. Bicep was a ground based experiment using an array of 49 pairs of polarization sensitive bolometers observing from the geographic South Pole at 100 and 150 GHz. The Bicep polarimeter is calibrated to ±0.01 in cross-polarization and less than ±0.7◦ in absolute polarization orientation. Bicep observed the temperature and polarization of the Galactic plane (R.A = 100◦ ∼ 270◦ and Dec. = −67◦ ∼ −48◦). We show that the statistical error in the 100 GHz Bicep Galaxy map can constrain the polarization angle offset of Wmap W band to 0.6◦ ± 1.4◦. The expected 1σ errors on the polarization angle cross-calibration for Planck or EPIC are 1.3◦ and 0.3◦ at 100 and 150 GHz, respectively. We also discuss the expected improvement of the Bicep Galactic field observations with forthcoming Bicep2 and Keck observations.
Published Version: doi:10.1117/12.856855
Other Sources: http://arxiv.org/abs/1007.2874
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:33717520
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