Kesden, Michael and Cooray, Asantha and Kamionkowski, Marc (2003) Lensing reconstruction with CMB temperature and polarization. Physical Review D, 67 (12). Art. No. 123507. ISSN 0556-2821 http://resolver.caltech.edu/CaltechAUTHORS:KESprd03
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Abstract
Weak gravitational lensing by an intervening large-scale structure induces a distinct signature in the cosmic microwave background (CMB) that can be used to reconstruct the weak-lensing displacement map. Estimators for individual Fourier modes of this map can be combined to produce an estimator for the lensing-potential power spectrum. The naive estimator for this quantity will be biased upwards by the uncertainty associated with reconstructing individual modes; we present an iterative scheme for removing this bias. The variance and covariance of the lensing-potential power spectrum estimator are calculated and evaluated numerically in a LambdaCDM universe for Planck and future polarization-sensitive CMB experiments.
| Item Type: | Article |
|---|---|
| Additional Information: | ©2003 The American Physical Society. Received 25 February 2003; published 11 June 2003. We thank Wayne Hu for useful discussions. This work was supported in part by NASA NAG5-11985 and DOE DEFG03-92-ER40701. M.K. acknowledges the support of the NSF Graduate program and A.C. acknowledges support from the Sherman Fairchild Foundation. |
| Group: | TAPIR |
| Subject Keywords: | radiofrequency cosmic radiation; electromagnetic wave polarisation; iterative methods; gravitational lenses; cosmology; Fourier analysis |
| Record Number: | CaltechAUTHORS:KESprd03 |
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:KESprd03 |
| Alternative URL: | http://dx.doi.org/10.1103/PhysRevD.67.123507 |
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
| ID Code: | 5015 |
| Collection: | CaltechAUTHORS |
| Deposited By: | Lindsay Cleary |
| Deposited On: | 19 Sep 2006 |
| Last Modified: | 26 Dec 2012 09:03 |
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