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Planck 2015 results. IX. Diffuse component separation: CMB maps

Journal article published in 2015 by H. A. E. Zwart, F. Van Tent, U. A., B. Van Tent, N. Bartolo, Suman Basak, E. Battaner, K. Benabed, A. Benoît, Jp-P. Bernard, P. Mazzotta, A. Benoit Lévy, M. Bersanelli, R. Adam, P. Bielewicz and other authors.
This paper is available in a repository.
This paper is available in a repository.

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Abstract

42 pages, 36 figures. Submitted to A&A - See paper for full list of authors ; We present foreground-reduced CMB maps derived from the full Planck data set in both temperature and polarization. Compared to the corresponding Planck 2013 temperature sky maps, the total data volume is larger by a factor of 3.2 for frequencies between 30 and 70 GHz, and by 1.9 for frequencies between 100 and 857 GHz. In addition, systematic errors in the forms of temperature-to-polarization leakage, analogue-to-digital conversion uncertainties, and very long time constant errors have been dramatically reduced, to the extent that the cosmological polarization signal may now be robustly recovered on angular scales ℓ≳40. On the very largest scales, instrumental systematic residuals are still non-negligible compared to the expected cosmological signal, and modes with ℓ