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How to Derotate the Cosmic Microwave Background Polarization

Kamionkowski, Marc (2009) How to Derotate the Cosmic Microwave Background Polarization. Physical Review Letters, 102 (11). p. 111302. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:20090908-103552819

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Abstract

If the linear polarization of the cosmic microwave background is rotated in a frequency-independent manner as it propagates from the surface of last scatter, it may introduce a B-mode polarization. Here I show that measurement of higher-order TE, EE, EB, and TB correlations induced by this rotation can be used to reconstruct the rotation angle as a function of position on the sky. This technique can be used to distinguish primordial B modes from those induced by rotation. The effects of rotation can be distinguished geometrically from similar effects due to cosmic shear.


Item Type:Article
Related URLs:
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http://dx.doi.org/10.1103/PhysRevLett.102.111302DOIUNSPECIFIED
http://link.aps.org/doi/10.1103/PhysRevLett.102.111302PublisherUNSPECIFIED
Additional Information:© 2009 The American Physical Society. Received 7 October 2008; revised 12 February 2009; published 19 March 2009. I thank A. Cooray, C. Hirata, and V. Gluscevic for useful comments. This work was supported by DoE Grant No. DE-FG03-92-ER40701. PACS numbers: 98.70.Vc
Group:TAPIR
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Funding AgencyGrant Number
Department of EnergyDE-FG03-92-ER40701
Subject Keywords:PACS: 98.70.Vc
Record Number:CaltechAUTHORS:20090908-103552819
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20090908-103552819
Official Citation:How to Derotate the Cosmic Microwave Background Polarization Marc Kamionkowski, Phys. Rev. Lett. 102, 111302 (2009), DOI:10.1103/PhysRevLett.102.111302
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:15670
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:10 Sep 2009 15:57
Last Modified:26 Dec 2012 11:20

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