FN Archimer Export Format
PT J
TI Improved large-scale interstellar dust foreground model and CMB solar dipole measurement
BT 
AF Delouis, Jean Marc
   Puget, J.-L.
   Vibert, L.
AS 1:1;2:2,3;3:2;
FF 1:;2:;3:;
C1 Laboratoire d’Océanographie Physique et Spatiale (LOPS), Univ. Brest, CNRS, Ifremer, IRD, Brest, France
   Institut d’Astrophysique Spatiale, CNRS, Univ. Paris-Sud, Université Paris-Saclay, Bât. 121, 91405 Orsay Cedex, France
   Ecole Normale Supérieure, Sorbonne Université, Observatoire de Paris, Université PSL, École Normale Supérieure, CNRS, Paris, France
C2 CNRS, FRANCE
   CNRS, FRANCE
   ENS, FRANCE
UM LOPS
IN WOS Cotutelle UMR
   copubli-france
IF 6.24
TC 6
UR https://archimer.ifremer.fr/doc/00702/81365/85727.pdf
   https://archimer.ifremer.fr/doc/00702/81365/86966.pdf
LA English
DT Article
DE ;surveys;cosmic background radiation;diffuse radiation;methods: data analysis;dust;extinction
AB The cosmic microwave background (CMB) anisotropies are difficult to measure at large angular scales. In this paper, we present a new analysis of the Planck High Frequency Instrument data that brings the cosmological part and its major foreground signal close to the detector noise. The solar dipole signal induced by the motion of the Solar System with respect to the CMB is a very efficient tool for calibrating a detector or cross-calibrating sets of detectors with high accuracy. In this work, the solar dipole signal is used to extract corrections of the frequency map offsets, reducing uncertainties significantly. The solar dipole parameters are refined together with the improvement of the high-frequency foregrounds and the CMB large-scale cosmological anisotropies. The stability of the solar dipole parameters is a powerful way to control Galactic foreground removal in the component separation process. We use this stability to build a model of the spatial variations in spectral energy distribution of the interstellar dust emission. Knowledge of these variations will help future CMB analyses of intensity and polarization used to measure faint signals related to the optical reionization depth and the tensor-to-scalar ratio of the primordial anisotropies. The results of this work are: improved solar dipole parameters, a new interstellar dust model, and a large-scale intensity map of cosmological anisotropies. 
PY 2021
PD JUL
SO Astronomy & Astrophysics
SN 0004-6361
PU EDP Sciences
VL 650
UT 000663016700002
DI 10.1051/0004-6361/202140616
ID 81365
ER

EF