2019A&A...632A...1K


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.27CET11:31:37

2019A&A...632A...1K - Astronomy and Astrophysics, volume 632A, 1-1 (2019/12-0)

Beam-deconvolved Planck LFI maps.

KEIHANEN E., LINDHOLM V., LOPEZ-CANIEGO M., MARIS M., REINECKE M., SANDRI M. and SUUR-USKI A.-S.

Abstract (from CDS):

The Planck Collaboration made its final data release in 2018. In this paper we describe beam-deconvolution map products made from Planck Low Frequency Instrument (LFI) data using the artDeco deconvolution code to symmetrize the effective beam. The deconvolution results are auxiliary data products, available through the Planck Legacy Archive. Analysis of these deconvolved survey difference maps reveals signs of residual signal in the 30GHz and 44GHz frequency channels. We produce low-resolution maps and corresponding noise covariance matrices (NCVMs). The NCVMs agree reasonably well with the half-ring noise estimates except for 44GHz, where we observe an asymmetry between EE and BB noise spectra, possibly a sign of further unresolved systematic error. In contrast to the official Planck LFI maps, the beam-deconvolution maps have not been corrected for bandpass mismatch, and the residual noise is not well approximated by white noise.

Abstract Copyright: © ESO 2019

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

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 M 1 SNR 05 34 31.94 +22 00 52.2           ~ 5685 4
2 3C 279 QSO 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2744 2

    Equat.    Gal    SGal    Ecl

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2021.01.27-11:31:37

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