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    QUBIC II: Spectral polarimetry with bolometric interferometry


    Mousset, L., Gamboa Lerena, M.M., Battistelli, E.S., de Bernardis, P., Chanial, P., D'Alessandro, G., Dashyan, G., De Petris, M., Grandsire, L., Hamilton, J.-Ch., Incardona, F., Landau, S., Marnieros, S., Masi, S., Mennella, A., O'Sullivan, Créidhe, Piat, M., Ricciardi, G., Scóccola, C.G., Stolpovskiy, M., Tartari, A., Thermeau, J.-P., Torchinsky, S.A., Voisin, F., Zannoni, M., Ade, P., Alberro, J.G., Almela, A., Amico, G., Arnaldi, L.H., Auguste, D., Aumont, J., Azzoni, S., Banfi, S., Baù, A., Bélier, B., Bennett, D., Bergé, L., Bernard, J.-Ph., Bersanelli, M., Bigot-Sazy, M.-A., Bonaparte, J., Bonis, J., Bunn, E., Burke, D., Buzi, D., Cavaliere, F., Chapron, C., Charlassier, R., Cobos Cerutti, A.C., Columbro, F., Coppolecchia, A., De Gasperis, G., De Leo, M., Dheilly, S., Duca, C., Dumoulin, L., Etchegoyen, A., Fasciszewski, A., Ferreyro, L.P., Fracchia, D., Franceschet, C., Ganga, K.M., García, B., García Redondo, M.E., Gaspard, M., Gayer, D., Gervasi, M., Giard, M., Gilles, V., Giraud-Heraud, Y., Gómez Berisso, M., González, M., Gradziel, M., Hampel, M.R., Harari, D., Henrot-Versillé, S., Jules, E., Kaplan, J., Kristukat, C., Lamagna, L., Loucatos, S., Louis, T., Maffei, B., Mandelli, S., Marty, W., Mattei, A., May, A., McCulloch, M., Mele, L., Melo, D., Montier, L., Mundo, L.M., Murphy, J.A., Murphy, J.D., Nati, F., Olivieri, E., Oriol, C., Paiella, A., Pajot, F., Passerini, A., Pastoriza, H., Pelosi, A., Perbost, C., Perciballi, M., Pezzotta, F., Piacentini, F., Piccirillo, L., Pisano, G., Platino, M., Polenta, G., Prêle, D., Puddu, R., Rambaud, D., Rasztocky, E., Ringegni, P., Romero, G.E., Salum, J.M., Schillaci, A., Scully, S., Spinelli, S., Stankowiak, G., Supanitsky, A.D., Timbie, P., Tomasi, M., Tucker, C., Tucker, G., Viganò, D., Vittorio, N., Wicek, F., Wright, M. and Zullo, A. (2022) QUBIC II: Spectral polarimetry with bolometric interferometry. Journal of Cosmology and Astroparticle Physics, 035. pp. 1-31. ISSN 1475-7516

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    Abstract

    Bolometric interferometry is a novel technique that has the ability to perform spectral imaging. A bolometric interferometer observes the sky in a wide frequency band and can reconstruct sky maps in several sub-bands within the physical band in post-processing of the data. This provides a powerful spectral method to discriminate between the cosmic microwave background (CMB) and astrophysical foregrounds. In this paper, the methodology is illustrated with examples based on the Q & U Bolometric Interferometer for Cosmology (QUBIC) which is a ground-based instrument designed to measure the B-mode polarization of the sky at millimeter wavelengths. We consider the specific cases of point source reconstruction and Galactic dust mapping and we characterize the point spread function as a function of frequency. We study the noise properties of spectral imaging, especially the correlations between sub-bands, using end-to-end simulations together with a fast noise simulator. We conclude showing that spectral imaging performance are nearly optimal up to five sub-bands in the case of QUBIC.
    Item Type: Article
    Keywords: CMBR experiments; CMBR theory; cosmological parameters; CMBR; gravitational waves; CMBR polarization;
    Academic Unit: Faculty of Science and Engineering > Experimental Physics
    Item ID: 17823
    Identification Number: 10.1088/1475-7516/2022/04/035
    Depositing User: Dr. Créidhe O'Sullivan
    Date Deposited: 14 Nov 2023 11:35
    Journal or Publication Title: Journal of Cosmology and Astroparticle Physics
    Publisher: IOP Publishing
    Refereed: Yes
    Related URLs:
    URI: https://mural.maynoothuniversity.ie/id/eprint/17823
    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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