Mousset, L.L.MoussetGamboa Lerena, M.M.M.M.Gamboa LerenaBattistelli, E.S.E.S.BattistelliDe Bernardis, P.P.De BernardisChanial, P.P.ChanialD'Alessandro, G.G.D'AlessandroDashyan, G.G.DashyanDe Petris, M.M.De PetrisGrandsire, L.L.GrandsireHamilton, J.-C.J.-C.HamiltonIncardona, F.F.IncardonaLandau, S.S.LandauMarnieros, S.S.MarnierosMasi, S.S.MasiMennella, A.A.MennellaO'Sullivan, C.C.O'SullivanPiat, M.M.PiatRicciardi, G.G.RicciardiScóccola, C.G.C.G.ScóccolaStolpovskiy, M.M.StolpovskiyTartari, A.A.TartariThermeau, J.-P.J.-P.ThermeauTorchinsky, S.A.S.A.TorchinskyVoisin, F.F.VoisinZannoni, M.M.ZannoniAde, P.P.AdeAlberro, J.G.J.G.AlberroAlmela, A.A.AlmelaAmico, G.G.AmicoArnaldi, L.H.L.H.ArnaldiAuguste, D.D.AugusteAumont, J.J.AumontAzzoni, S.S.AzzoniBanfi, S.S.BanfiBaù, A.A.BaùBélier, B.B.BélierBennett, D.D.BennettBergé, L.L.BergéBernard, J.-P.J.-P.BernardBersanelli, M.M.BersanelliBigot-Sazy, M.-A.M.-A.Bigot-SazyBonaparte, J.J.BonaparteBonis, J.J.BonisBunn, E.E.BunnBurke, D.D.BurkeBuzi, D.D.BuziCavaliere, F.F.CavaliereChapron, C.C.ChapronCharlassier, R.R.CharlassierCobos Cerutti, A.C.A.C.Cobos CeruttiColumbro, F.F.ColumbroCoppolecchia, A.A.CoppolecchiaDe Gasperis, G.G.De GasperisDe Leo, M.M.De LeoDheilly, S.S.DheillyDuca, C.C.DucaDumoulin, L.L.DumoulinEtchegoyen, A.A.EtchegoyenFasciszewski, A.A.FasciszewskiFerreyro, L.P.L.P.FerreyroFracchia, D.D.FracchiaFranceschet, C.C.FranceschetGanga, K.M.K.M.GangaGarcía, B.B.GarcíaGarcía Redondo, M.E.M.E.García RedondoGaspard, M.M.GaspardGayer, D.D.GayerGervasi, M.M.GervasiGiard, M.M.GiardGilles, V.V.GillesGiraud-Heraud, Y.Y.Giraud-HeraudGómez Berisso, M.M.Gómez BerissoGonzález, M.M.GonzálezGradziel, M.M.GradzielHampel, M.R.M.R.HampelHarari, D.D.HarariHenrot-Versillé, S.S.Henrot-VersilléJules, E.E.JulesKaplan, J.J.KaplanKristukat, C.C.KristukatLamagna, L.L.LamagnaLoucatos, S.S.LoucatosLouis, T.T.LouisMaffei, B.B.MaffeiMandelli, S.S.MandelliMarty, W.W.MartyMattei, A.A.MatteiMay, A.A.MayMcCulloch, M.M.McCullochMele, L.L.MeleMelo, D.D.MeloMontier, L.L.MontierMundo, L.M.L.M.MundoMurphy, J.A.J.A.MurphyMurphy, J.D.J.D.MurphyNati, F.F.NatiOlivieri, E.E.OlivieriOriol, C.C.OriolPaiella, A.A.PaiellaPajot, F.F.PajotPasserini, A.A.PasseriniPastoriza, H.H.PastorizaPelosi, A.A.PelosiPerbost, C.C.PerbostPerciballi, M.M.PerciballiPezzotta, F.F.PezzottaPiacentini, F.F.PiacentiniPiccirillo, L.L.PiccirilloPisano, G.G.PisanoPlatino, M.M.PlatinoPolenta, GianlucaGianlucaPolentaPrêle, D.D.PrêlePuddu, R.R.PudduRambaud, D.D.RambaudRasztocky, E.E.RasztockyRingegni, P.P.RingegniRomero, G.E.G.E.RomeroSalum, J.M.J.M.SalumSchillaci, A.A.SchillaciScully, S.S.ScullySpinelli, S.S.SpinelliStankowiak, G.G.StankowiakSupanitsky, A.D.A.D.SupanitskyTimbie, P.P.TimbieTomasi, M.M.TomasiTucker, C.C.TuckerTucker, G.G.TuckerViganò, D.D.ViganòVittorio, N.N.VittorioWicek, F.F.WicekWright, M.M.WrightZullo, A.A.Zullo2022-08-292022-08-292022-04-21https://hdl.handle.net/20.500.13025/6251Bolometric 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. © 2022 IOP Publishing Ltd and Sissa Medialab.enjournal article10.1088/1475-7516/2022/04/035https://iopscience.iop.org/article/10.1088/1475-7516/2022/04/035