SIMBAD references

2014A&A...563A.105B - Astronomy and Astrophysics, volume 563A, 105-105 (2014/3-1)

Joint Planck and WMAP CMB map reconstruction.

BOBIN J., SUREAU F., STARCK J.-L., RASSAT A. and PAYKARI P.

Abstract (from CDS):

We present a novel estimate of the cosmological microwave background (CMB) map by combining the two latest full-sky microwave surveys: WMAP nine-year and Planck PR1. The joint processing benefits from a recently introduced component separation method coined ``local-generalized morphological component analysis'' (LGMCA) and based on the sparse distribution of the foregrounds in the wavelet domain. The proposed estimation procedure takes advantage of the IRIS 100 µm as an extra observation on the galactic center for enhanced dust removal. We show that this new CMB map presents several interesting aspects: i) it is a full sky map without using any inpainting or interpolating method; ii) foreground contamination is very low; iii) the Galactic center is very clean with especially low dust contamination as measured by the cross-correlation between the estimated CMB map and the IRIS 100µm map; and iv) it is free of thermal SZ contamination.

Abstract Copyright:

Journal keyword(s): cosmic background radiation - methods: data analysis - methods: statistical

Simbad objects: 2

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2019.12.10-12:13:48

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