A high-significance detection of non-Gaussianity in the WMAP 5-year data using directional spherical wavelets

Simple item page
dc.creatorMcEwen, J. D.
dc.creatorHobson, M. P.
dc.creatorLasenby, A. N.
dc.creatorMortlock, D. J.
dc.date2008-03-14
dc.date2008-04-29
dc.date.accessioned2026-07-07T09:59:34Z
dc.date.available2026-07-07T09:59:34Z
dc.descriptionWe repeat the directional spherical real Morlet wavelet analysis, used to detect non-Gaussianity in the Wilkinson Microwave Anisotropy Probe (WMAP) 1-year and 3-year data (McEwen et al. 2005, 2006a), on the WMAP 5-year data. The non-Gaussian signal detected previously is present in the 5-year data at a slightly increased statistical significance of approximately 99%. Localised regions that contribute most strongly to the non-Gaussian signal are found to be very similar to those detected in the previous releases of the WMAP data. When the localised regions detected in the 5-year data are excluded from the analysis the non-Gaussian signal is eliminated.
dc.description4 pages, 4 figures, replaced to match version accepted by MNRAS, masks available for download
dc.identifierhttps://arxiv.org/abs/0803.2157
dc.identifierhttp://arxiv.org/abs/0803.2157
dc.identifierMon.Not.Roy.Astron.Soc. 388 (2008) 659-662
dc.identifierdoi:10.1111/j.1365-2966.2008.13406.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168066
dc.subjectAstrophysics
dc.titleA high-significance detection of non-Gaussianity in the WMAP 5-year data using directional spherical wavelets
dc.typetext

Files

Collections

arXiv