Hamilton, J.-Ch. and Mousset, L. and Battistelli, E.S. and de Bernardis, P. and Bigot-Sazy, M.-A. and Chanial, P. and Charlassier, R. and D'Alessandro, G. and De Petris, M. and Gamboa Lerena, M.M. and Grandsire, L. and Landau, S. and Mandelli, S. and Marnieros, S. and Masi, S. and Mennella, A. and O'Sullivan, Créidhe and Piat, M. and Ricciardi, G. and Scóccola, C.G. and Stolpovskiy, M. and Tartari, A. and Torchinsky, S.A. and Voisin, F. and Zannoni, M. and Ade, P. and Alberro, J.G. and Almela, A. and Amico, G. and Arnaldi, L.H. and Auguste, D. and Aumont, J. and Azzoni, S. and Banfi, S. and Baù, A. and Bélier, B. and Bennett, D. and Bergé, L. and Bernard, J.-Ph. and Bersanelli, M. and Bonaparte, J. and Bonis, J. and Bunn, E. and Burke, D. and Buzi, D. and Cavaliere, F. and Chapron, C. and Cobos Cerutti, A.C. and Columbro, F. and Coppolecchia, A. and De Gasperis, G. and De Leo, M. and Dheilly, S. and Duca, C. and Dumoulin, L. and Etchegoyen, A. and Fasciszewski, A. and Ferreyro, L.P. and Fracchia, D. and Franceschet, C. and Ganga, K.M. and García, B. and García Redondo, M.E. and Gaspard, M. and Gayer, D. and Gervasi, M. and Giard, M. and Gilles, V. and Giraud-Heraud, Y. and Gómez Berisso, M. and González, M. and Gradziel, M. and Hampel, M.R. and Harari, D. and Henrot-Versillé, S. and Incardona, F. and Jules, E. and Kaplan, J. and Kristukat, C. and Lamagna, L. and Loucatos, S. and Louis, T. and Maffei, B. and Marty, W. and Mattei, A. and May, A. and McCulloch, M. and Mele, L. and Melo, D. and Montier, L. and Mundo, L.M. and Murphy, J.A. and Murphy, J.D. and Nati, F. and Olivieri, E. and Oriol, C. and Paiella, A. and Pajot, F. and Passerini, A. and Pastoriza, H. and Pelosi, A. and Perbost, C. and Perciballi, M. and Pezzotta, F. and Piacentini, F. and Piccirillo, L. and Pisano, G. and Platino, M. and Polenta, G. and Prêle, D. and Puddu, R. and Rambaud, D. and Rasztocky, E. and Ringegni, P. and Romero, G.E. and Salum, J.M. and Schillaci, A. and Scully, S. and Spinelli, S. and Stankowiak, G. and Supanitsky, A.D. and Thermeau, J.-P. and Timbie, P. and Tomasi, M. and Tucker, C. and Tucker, G. and Viganò, D. and Vittorio, N. and Wicek, F. and Wright, M. and Zullo, A. (2022) QUBIC I: Overview and science program. Journal of Cosmology and Astroparticle Physics, 034. pp. 1-39. ISSN 1475-7516

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Abstract

The Q & U Bolometric Interferometer for Cosmology (QUBIC) is a novel kind of polarimeter optimized for the measurement of the B-mode polarization of the Cosmic Microwave Background (CMB), which is one of the major challenges of observational cosmology. The signal is expected to be of the order of a few tens of nK, prone to instrumental systematic effects and polluted by various astrophysical foregrounds which can only be controlled through multichroic observations. QUBIC is designed to address these observational issues with a novel approach that combines the advantages of interferometry in terms of control of instrumental systematic effects with those of bolometric detectors in terms of wide-band, background-limited sensitivity. The QUBIC synthesized beam has a frequency-dependent shape that results in the ability to produce maps of the CMB polarization in multiple subbands within the two physical bands of the instrument (150 and 220 GHz). These features make QUBIC complementary to other instruments and makes it particularly well suited to characterize and remove Galactic foreground contamination. In this article, first of a series of eight, we give an overview of the QUBIC instrument design, the main results of the calibration campaign, and present the scientific program of QUBIC including not only the measurement of primordial B-modes, but also the measurement of Galactic foregrounds. We give forecasts for typical observations and measurements: with three years of integration on the sky and assuming perfect foreground removal as well as stable atmospheric conditions from our site in Argentina, our simulations show that we can achieve a statistical sensitivity to the effective tensor-to-scalar ratio (including primordial and foreground B-modes) σ(r) = 0.015.

Item Type:	Article
Keywords:	CMBR experiments; CMBR theory; cosmological parameters from CMBR; gravitational waves; CMBR polarization;
Academic Unit:	Faculty of Science and Engineering > Experimental Physics
Item ID:	17821
Identification Number:	https://doi.org/10.1088/1475-7516/2022/04/034
Depositing User:	Dr. Créidhe O'Sullivan
Date Deposited:	14 Nov 2023 10:59
Journal or Publication Title:	Journal of Cosmology and Astroparticle Physics
Publisher:	IOP Publishing
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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