Browsing Institutt for teoretisk astrofysikk by Author "Axelsson, Magnus"
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Axelsson, Magnus; Hansen, Frode Kristian; Koivisto, Tomi Sebastian; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)We test anisotropic dark energy models with the 7-year WMAP temperature observation data. In the presence of imperfect sources, large-scale gradients or anisotropies in the dark energy mean that the CMB sky will be distorted ...
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Axelsson, Magnus; Ihle, Håvard Tveit; Scodeller, Sandro; Hansen, Frode Kristian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)We test for foreground residuals in the foreground-cleaned Planck cosmic microwave background (CMB) maps outside and inside the U73 mask commonly used for cosmological analysis. The aim of this paper is to introduce a new ...