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Rosset, C., Yurchenko, V., Delabrouille, J., Kaplan, J., Giraud-Héraud, Y., Lamarre, J.-M. and Murphy, J.Anthony (2007) Beam mismatch effects in cosmic microwave background polarization measurements. Astronomy & Astrophysics, 464 (1). pp. 405-415. ISSN 0004-6361
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Abstract
Measurement of cosmic microwave background polarization is today a major goal of observational cosmology. The level of the signal
to measure, however, makes it very sensitive to various systematic effects. In the case of Planck, which measures polarization by
combining data from various detectors, the beam asymmetry can induce a conversion of temperature signals to polarization signals or
a polarization mode mixing. In this paper, we investigate this effect using realistic simulated beams and propose a first-order method
to correct the polarization power spectra for the induced systematic effect.
| Item Type: | Article |
|---|---|
| Keywords: | cosmology; cosmic microwave background; polarization; |
| Academic Unit: | Faculty of Science and Engineering > Experimental Physics |
| Item ID: | 14136 |
| Identification Number: | 10.1051/0004-6361:20042230 |
| Depositing User: | Dr. Anthony Murphy |
| Date Deposited: | 05 Mar 2021 16:26 |
| Journal or Publication Title: | Astronomy & Astrophysics |
| Publisher: | EDP Sciences |
| Refereed: | Yes |
| Related URLs: | |
| URI: | https://mural.maynoothuniversity.ie/id/eprint/14136 |
| Use Licence: | This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here |
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