Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2009-07-13
Mon.Not.Roy.Astron.Soc.400:2169-2173,2009
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
pdflatex to fix incorrectly rendered plots
Scientific paper
10.1111/j.1365-2966.2009.15614.x
We discuss the effects of inhomogeneous sky-coverage on CMB lens reconstruction, focusing on application to the recently launched Planck satellite. We discuss the mean-field which is induced by noise inhomogeneities, as well as three approaches to lens reconstruction in this context: an optimal maximum-likelihood approach which is computationally expensive to evaluate, and two suboptimal approaches which are less intensive. The first of these is only sub-optimal at the five per-cent level for Planck, and the second prevents biasing due to uncertainties in the noise model.
Gorski Krzysztof
Hanson Duncan
Rocha Graca
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