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245 14 $a The advantage of Bolometric Interferometry for controlling Galactic foreground contamination in CMB primordial B-modes measurements / $c E. Manzan ... [et al.].
490 0# $a Trabajos publicados del IAR ; $v no. 1809
520 ## $a In the quest for the faint primordial B-mode polarization of the Cosmic Microwave Background, three are the key requirements for any present or future experiment: an utmost sensitivity, excellent control over instrumental systematic effects and over Galactic foreground contamination. Bolometric Interferometry (BI) is a novel technique that matches them all by combining the sensitivity of bolometric detectors, the control of instrumental systematics from interferometry and a software-based, tunable, in-band spectral resolution due to its ability to perform band-splitting during data analysis (spectral imaging). In this paper, we investigate how the spectral imaging capability of BI can help in detecting residual contamination in case an over-simplified model of foreground emission is assumed in the analysis. To mimic this situation, we focus on the next generation of ground-based CMB experiment, CMB-S4, and compare its anticipated sensitivities, frequency and sky coverage with a hypothetical version of the same experiment based on BI, CMB-S4/BI, assuming that lineof-sight (LOS) frequency decorrelation is present in dust emission but is not accounted for during component separation. We show results from a Monte-Carlo analysis based on a parametric component separation method (FGBuster), highlighting how BI has the potential to diagnose the presence of foreground residuals in estimates of the tensor-to-scalar ratio r in the case of unaccounted Galactic dust LOS frequency decorrelation.
773 0# $7 ||as $t European Physical Journal Web of Conferences $g Vol. 293, (2024), p. 00029
700 1# $a Manzan, E.
700 1# $a Regnier, M.
700 1# $a Hamilton, J. -Ch.
700 1# $a Mennella, A.
700 1# $a Errard, J.
700 1# $a Zapelli, L.
700 1# $a Torchinsky, S. A.
700 1# $a Paradiso, S.
700 1# $a Battistelli, E.
700 1# $a Bersanelli, M.
700 1# $a De Bernardis, P.
700 1# $a De Petris, M.
700 1# $a D'Alessandro, G.
700 1# $a Gervasi, M.
700 1# $a Masi, S.
700 1# $a Piat, M.
700 1# $a Rasztocky, Emiliano.
700 1# $a Romero, G. E. $q (Gustavo Esteban)
700 1# $a Scoccola, C. G.
700 1# $a Zannoni, M.
653 ## $a Cosmic Microwave Background.
653 ## $a QUBIC.
040 ## $a AR-BaBIR $b spa
856 41 $u https://ui.adsabs.harvard.edu/abs/2024EPJWC.29300029M $y ADS
856 ## $u https://www.iar.unlp.edu.ar/biblio/htdocs/artic/contri/1809.pdf $y PDF

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