CMB Power Spectrum Estimation for the Planck Surveyor

Details CMB Power Spectrum Estimation for the Planck Surveyor CMB Power Spectrum Estimation for the Planck Surveyor

2002-03-11

arxiv.org/abs/astro-ph/0203159v2

Astron.Astrophys. 395 (2002) 417-422

Astronomy and Astrophysics

Astrophysics

6 pages, 5 figures. Matching accepted version

Scientific paper

10.1051/0004-6361:20021288

We use an iterative generalized least squares map-making algorithm, in conjunction with Monte Carlo techniques, to obtain estimates of the angular power spectrum from cosmic microwave background (CMB) maps. This is achieved by characterizing and removing the instrumental noise contribution in multipole space. This technique produces unbiased estimates and can be applied to an arbitrary experiment. In this paper, we use it on realistic simulations of Planck Low Frequency Instrument (LFI) observations, showing that it can lead to fast and reliable estimation of the CMB angular power spectrum from megapixel maps.

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