Iterative map-making methods for Cosmic Microwave Background data analysis

Details Iterative map-making methods for Cosmic Microwave Background data analysis Iterative map-making methods for Cosmic Microwave Background data analysis

2001-09-27

arxiv.org/abs/astro-ph/0109509v1

AIP Conf.Proc.616:360-362,2002

Astronomy and Astrophysics

Astrophysics

to appear in the proceedings of the 2K1BC Workshop, 2001

Scientific paper

10.1063/1.1475659

The map-making process of Cosmic Microwave Background data involves linear inversion problems which cannot be performed by a brute force approach for the large timelines of most modern experiments. We present optimal iterative map-making methods, both COBE and Wiener, and apply these methods on simulated data. They produce very well restored maps, by removing nearly completely the correlated noise that appears as intense stripes on the simply pixel-averaged maps.

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