{"paper":{"title":"Planck intermediate results. XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. A. Fraisse, A. Bonaldi, A. Challinor, A. Coulais, A. Curto, A. De Rosa, A. Ducout, A. Frolov, A. Gruppuso, A. H. Jaffe, A. J. Banday, A. Lasenby, A. Mangilli, A. Melchiorri, A. Mennella, A. Moneti, A. Moss, A. Renzi, A.-S. Suur-Uski, A. Zacchei, A. Zonca, B. Comis, B. D. Wandelt, B. Partridge, B. P. Crill, B. Racine, B. Ruiz-Granados, C. A. Oxborrow, C. Baccigalupi, C. Burigana, C. Combet, C. Dickinson, C. R. Lawrence, D. Herranz, D. Molinari, D. Paoletti, D. Scott, E. Calabrese, E. Di Valentino, E. Falgarone, E. Franceschi, E. Hivon, E. Keih\\\"anen, E. Mart\\'inez-Gonz\\'alez, F. Boulanger, F. Cuttaia, F. Elsner, F. Finelli, F. Forastieri, F. K. Hansen, F. Levrier, F. Piacentini, F. R. Bouchet, F. Van Tent, F. Villa, G. de Zotti, G. Efstathiou, G. Helou, G. Lagache, G. Maggio, G. Morgante, G. Patanchon, G. Polenta, G. Rocha, G. Roudier, G. Sirri, H. C. Chiang, H. K. Eriksen, H. Kurki-Suonio, I. K. Wehus, J. A. Rubi\\~no-Mart\\'in, J. A. Tauber, J. Aumont, J. Borrill, J. Carron, J. Delabrouille, J. D. McEwen, J. E. Gudmundsson, J.-F. Cardoso, J. F. Mac\\'ias-P\\'erez, J. Gonz\\'alez-Nuevo, J. J. Bock, J.-L. Puget, J.-M. Delouis, J. M. Diego, J.-M. Lamarre, J.-P. Bernard, J. P. Leahy, J. P. Rachen, J. R. Bond, J. Valiviita, K. Benabed, K. Ganga, K. M. G\\'orski, L. Bonavera, L. Knox, L. Montier, L. Pagano, L. Patrizii, L. Perotto, L. P. L. Colombo, L. Polastri, L. Salvati, L. Toffolatti, L. Vibert, M.-A. Miville-Desch\\^enes, M. Ashdown, M. Ballardini, M. Bersanelli, M. Bucher, M. Douspis, M. Frailis, M. Gerbino, M. Kunz, M. Langer, M. Lattanzi, M. Le Jeune, M. Liguori, M. L\\'opez-Caniego, M. Maris, M. Migliaccio, M. Reinecke, M. Remazeilles, M. Rossetti, M. Sandri, M. Savelainen, M. Tenti, M. Tomasi, M. Tristram, M. White, N. Bartolo, N. Krachmalnicoff, N. Mauri, N. Vittorio, O. Dor\\'e, O. Perdereau, P. Bielewicz, P. B. Lilje, P. De Bernardis, P. G. Martin, Planck Collaboration: N. Aghanim, P. Naselsky, P. Natoli, P. R. Meinhold, P. Vielva, R. Battye, R. B. Barreiro, R. C. Butler, R. J. Davis, R. Keskitalo, R. Sunyaev, R. T. G\\'enova-Santos, R. Watson, S. Basak, S. Galeotta, S. Galli, S. Gratton, S. Henrot-Versill\\'e, S. Ilic, S. Matarrese, S. Mottet, S. Plaszczynski, T. A. En{\\ss}lin, T. Ghosh, T. S. Kisner, T. Trombetti, V. Pettorino, W. C. Jones, X. Dupac, Y. Fantaye, Y.-Z. Ma, Z. Huang","submitted_at":"2016-05-10T12:46:01Z","abstract_excerpt":"This paper describes the identification, modelling, and removal of previously unexplained systematic effects in the polarization data of the Planck High Frequency Instrument (HFI) on large angular scales, including new mapmaking and calibration procedures, new and more complete end-to-end simulations, and a set of robust internal consistency checks on the resulting maps. These maps, at 100, 143, 217, and 353 GHz, are early versions of those that will be released in final form later in 2016.\n  The improvements allow us to determine the cosmic reionization optical depth $\\tau$ using, for the fir"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.02985","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}