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Exploring cosmic origins with CORE: The instrument

P. de Bernardis, P. A. R. Ade, Baselmans, E. Battistelli, A. Benoît, M. Bersanelli, A. Bideaud, M. Calvo, F. Casas, G. Castellano, A. Catalano, I. Charles, I. Colantoni, F. Columbro, A. Coppolecchia, M. Crook, G. D'Alessandro, M. de Petris, J. Delabrouille, S. Doyle, C. Franceschet, A. Gómez, J. Goupy, S. Hanany, M. Hills, L Lamagna, J. F. Macias-Perez, B. Maffei, S. Martin, E. Martínez-González, G. Masi, D. McCarthy, A. Mennella, A. Monfardini, F. Noviello, A. Paiella, F. Piacentini, M. Piat, G. Pisano, G. Signorelli, C. Y. Tan, A. Tartari, N. Trappe, S. Triqueneaux, C. Tucker, G. Vermeulen, K. Young, M. Zannoni, A. Achúcarro, R. Allison, E. Arta, M. Ashdown, M. Ballardini, A. J. Banday, R. Banerji, J.G. Bartlett, N. Bart, S. Basak, A. Bonaldi, M. Bonato, J. Borrill, F. R. Bouchet, F. Boulanger, T. Brinckmann, M. Bucher, C. Burigana, A. Buzzelli, Z.-Y. Cai, C. S. Carvalho, J. Chluba, S. Clesse, G. de Gasperis, G. de Zotti, E. Di Valentino, J. M. Diego, J. Errard, S. Feeney, R. Fernandez-Cobos, F. Finelli, F. Forastieri, A. Galli, R. T. Génova-Santos, M. Gerbino, J. González-Nuevo, S. Hagstotz, J. Greenslade, W. Handley, C. Hernández-Monteagudo, C. Hervias-Caimapo, E. Hivon, K. Kiiveri, T. S. Kisner, T. Kitching, M. Kunz, H. Kurki-Suonio, A. Lasenby, M. Lattanzi, J. Lesgourgues, A. Lewis, M. Liguori, V. Lindholm, G. Luzzi, C. J. A. P. Martins, S. Matarrese, A. Melchiorri, J.-B. Melin, D. Molinari, P. Natoli, M. Negrello, Notari, D. Paoletti, G. Patanchon, L. Polastri, G. Polenta, A. Po, V. Poulin, M. Quartin, M. Remazeilles, M. Roman, J. A. Rubiño-Martin, L. Salvati, M. Tomasi, D. Tramonte, T. Trombetti, J. Valiviita, R. Van de Weijgaert, B. Van Tent, V. Vennin, P. Vielva, N. Vittorio

Abstract
We describe a space-borne, multi-band, multi-beam polarimeter aiming at a precise and accurate measurement of the polarization of the Cosmic Microwave Background. The instrument is optimized to be compatible with the strict budget requirements of a medium size space mission within the Cosmic Vision Programme of the European Space Agency. The instrument has no moving parts, and uses arrays of diffraction-limited Kinetic Inductance Detectors to cover the frequency range from 60 GHz to 600 GHz in 19 wide bands, in the focal plane of a 1.2 m aperture telescope cooled at 40K, allowing for an accurate extraction of the CMB signal from polarized foreground emission. The projected CMB polarization survey sensitivity of this instrument, after foregrounds removal, is 1.7 mu K.arcmin. The design is robust enough to allow, if needed, a downscoped version of the instrument covering the 100 GHz to 600 GHz range with a 0.8 m aperture telescope cooled at 85K, with a projected CMB polarization survey sensitivity of 3.2 mu K.arcmin.

Keywords
CMBR detectors; CMBR experiments; CMBR polarisation; inflation

Journal of Cosmology and Astroparticle Physics
Volume 04, Issue 015, Page 47
2018 April

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Instituto de Astrofísica e Ciências do Espaço Universidade do Porto Faculdade de Ciências da Universidade de Lisboa
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia