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Beam deconvolution in noisy CMB maps

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Beam deconvolution in noisy CMB maps

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dc.contributor.author Burigana, C.
dc.contributor.author Saez Milan, Diego Pascual
dc.date.accessioned 2010-07-28T11:58:54Z
dc.date.available 2010-07-28T11:58:54Z
dc.date.issued 2003
dc.identifier.uri http://hdl.handle.net/10550/16713
dc.description.abstract The subject of this paper is beam deconvolution in small angular scale CMB experiments. The beam effect is reversed using the Jacobi iterative method, which was designed to solved systems of algebraic linear equations. The beam is a non circular one which moves according to the observational strategy. A certain realistic level of Gaussian instrumental noise is assumed. The method applies to small scale CMB experiments in general (cases A and B), but we have put particular attention on PLANK mission at 100 GHz (cases C and D). In cases B and D, where noise is present, deconvolution allows to correct the main beam distortion effect and recover the initial angular power spectrum up to the end of the fifth acoustic peak. An encouraging result whose importance is analyzed in detail. More work about deconvolution in the presence of other systematics is in progress. en
dc.language.iso en en
dc.relation http://www.aanda.org/index.php?option=article&access=standard&Itemid=129&url=/articles/aa/pdf/2003/38/aaff121.pdf en
dc.source BURIGANA, C. ; Saez Milan, Diego Pascual, 2003, Beam deconvolution in noisy CMB maps, Astronomy and Astrophysics, vol. 409, no. 2, p. 423-437 en
dc.subject Cosmic microwave background ; Numerical ; Data analysis en
dc.title Beam deconvolution in noisy CMB maps en
dc.type info:eu-repo/semantics/article en
dc.type info:eu-repo/semantics/publishedVersion en
dc.subject.unesco UNESCO::ASTRONOMÍA Y ASTROFÍSICA en
dc.subject.unesco UNESCO::ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogonia en
dc.identifier.doi 10.1051/0004-6361:20031038 en
dc.description.private Saez Milan, Diego Pascual, Diego.Saez@uv.es en
dc.identifier.idgrec 004668 en
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