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  • Akrami, Y. (author)

Planck intermediate results : LVII. Joint Planck LFI and HFI data processing

  • Article/chapterEnglish2020

Publisher, publication year, extent ...

  • 2020-11-11
  • EDP Sciences,2020
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-188740
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-188740URI
  • https://doi.org/10.1051/0004-6361/202038073DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • We present the NPIPE processing pipeline, which produces calibrated frequency maps in temperature and polarization from data from the Planck Low Frequency Instrument (LFI) and High Frequency Instrument (HFI) using high-performance computers. NPIPE represents a natural evolution of previous Planck analysis efforts, and combines some of the most powerful features of the separate LFI and HFI analysis pipelines. For example, following the LFI 2018 processing procedure, NPIPE uses foreground polarization priors during the calibration stage in order to break scanning-induced degeneracies. Similarly, NPIPE employs the HFI 2018 time-domain processing methodology to correct for bandpass mismatch at all frequencies. In addition, NPIPE introduces several improvements, including, but not limited to: inclusion of the 8% of data collected during repointing manoeuvres; smoothing of the LFI reference load data streams; in-flight estimation of detector polarization parameters; and construction of maximally independent detector-set split maps. For component-separation purposes, important improvements include: maps that retain the CMB Solar dipole, allowing for high-precision relative calibration in higher-level analyses; well-defined single-detector maps, allowing for robust CO extraction; and HFI temperature maps between 217 and 857 GHz that are binned into 0′.9 pixels (Nside = 4096), ensuring that the full angular information in the data is represented in the maps even at the highest Planck resolutions. The net effect of these improvements is lower levels of noise and systematics in both frequency and component maps at essentially all angular scales, as well as notably improved internal consistency between the various frequency channels. Based on the NPIPE maps, we present the first estimate of the Solar dipole determined through component separation across all nine Planck frequencies. The amplitude is (3366.6 ± 2.7) μK, consistent with, albeit slightly higher than, earlier estimates. From the large-scale polarization data, we derive an updated estimate of the optical depth of reionization of τ = 0.051 ± 0.006, which appears robust with respect to data and sky cuts. There are 600 complete signal, noise and systematics simulations of the full-frequency and detector-set maps. As a Planck first, these simulations include full time-domain processing of the beam-convolved CMB anisotropies. The release of NPIPE maps and simulations is accompanied with a complete suite of raw and processed time-ordered data and the software, scripts, auxiliary data, and parameter files needed to improve further on the analysis and to run matching simulations.

Subject headings and genre

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  • Andersen, K. J. (author)
  • Ashdown, M. (author)
  • Baccigalupi, C. (author)
  • Ballardini, M. (author)
  • Banday, A. J. (author)
  • Barreiro, R. B. (author)
  • Bartolo, N. (author)
  • Basak, S. (author)
  • Benabed, K. (author)
  • Bernard, J. -P. (author)
  • Bersanelli, M. (author)
  • Bielewicz, P. (author)
  • Bond, J. R. (author)
  • Borrill, J. (author)
  • Burigana, C. (author)
  • Butler, R. C. (author)
  • Calabrese, E. (author)
  • Casaponsa, B. (author)
  • Chiang, H. C. (author)
  • Colombo, L. P. L. (author)
  • Combet, C. (author)
  • Crill, B. P. (author)
  • Cuttaia, F. (author)
  • de Bernardis, P. (author)
  • de Rosa, A. (author)
  • de Zotti, G. (author)
  • Delabrouille, J. (author)
  • Di Valentino, E. (author)
  • Diego, J. M. (author)
  • Doré, O. (author)
  • Douspis, M. (author)
  • Dupac, X. (author)
  • Eriksen, H. K. (author)
  • Fernandez-Cobos, R. (author)
  • Finelli, F. (author)
  • Frailis, M. (author)
  • Fraisse, A. A. (author)
  • Franceschi, E. (author)
  • Frolov, A. (author)
  • Galeotta, S. (author)
  • Galli, S. (author)
  • Ganga, K. (author)
  • Gerbino, M. (author)
  • Ghosh, T. (author)
  • González-Nuevo, J. (author)
  • Górski, K. M. (author)
  • Gruppuso, A. (author)
  • Gudmundsson, Jón E.Stockholms universitet,Oskar Klein-centrum för kosmopartikelfysik (OKC),Fysikum,Princeton University, USA(Swepub:su)jgudm (author)
  • Handley, W. (author)
  • Helou, G. (author)
  • Herranz, D. (author)
  • Hildebrandt, S. R. (author)
  • Hivon, E. (author)
  • Huang, Z. (author)
  • Jaffe, A. H. (author)
  • Jones, W. C. (author)
  • Keihänen, E. (author)
  • Keskitalo, R. (author)
  • Kiiveri, K. (author)
  • Kim, J. (author)
  • Kisner, T. S. (author)
  • Krachmalnicoff, N. (author)
  • Kunz, M. (author)
  • Kurki-Suonio, H. (author)
  • Lasenby, A. (author)
  • Lattanzi, M. (author)
  • Lawrence, C. R. (author)
  • Le Jeune, M. (author)
  • Levrier, F. (author)
  • Liguori, M. (author)
  • Lilje, P. B. (author)
  • Lilley, M. (author)
  • Lindholm, V. (author)
  • López-Caniego, M. (author)
  • Lubin, P. M. (author)
  • Macías-Pérez, J. F. (author)
  • Maino, D. (author)
  • Mandolesi, N. (author)
  • Marcos-Caballero, A. (author)
  • Maris, M. (author)
  • Martin, P. G. (author)
  • Martínez-González, E. (author)
  • Matarrese, S. (author)
  • Mauri, N. (author)
  • McEwen, J. D. (author)
  • Meinhold, P. R. (author)
  • Mennella, A. (author)
  • Migliaccio, M. (author)
  • Mitra, S. (author)
  • Molinari, D. (author)
  • Montier, L. (author)
  • Morgante, G. (author)
  • Moss, A. (author)
  • Natoli, P. (author)
  • Paoletti, D. (author)
  • Partridge, B. (author)
  • Patanchon, G. (author)
  • Pearson, D. (author)
  • Pearson, T. J. (author)
  • Perrotta, F. (author)
  • Piacentini, F. (author)
  • Polenta, G. (author)
  • Rachen, J. P. (author)
  • Reinecke, M. (author)
  • Remazeilles, M. (author)
  • Renzi, A. (author)
  • Rocha, G. (author)
  • Rosset, C. (author)
  • Roudier, G. (author)
  • Rubiño-Martin, J. A. (author)
  • Ruiz-Granados, B. (author)
  • Salvati, L. (author)
  • Savelainen, M. (author)
  • Scott, D. (author)
  • Sirignano, C. (author)
  • Sirri, G. (author)
  • Spencer, L. D. (author)
  • Suur-Uski, A-S. (author)
  • Svalheim, L. T. (author)
  • Tauber, J. A. (author)
  • Tavagnacco, D. (author)
  • Tenti, M. (author)
  • Terenzi, L. (author)
  • Thommesen, H. (author)
  • Toffolatti, L. (author)
  • Tomasi, M. (author)
  • Tristram, M. (author)
  • Trombetti, T. (author)
  • Valiviita, J. (author)
  • Van Tent, B. (author)
  • Vielva, P. (author)
  • Villa, F. (author)
  • Vittorio, N. (author)
  • Wandelt, B. D. (author)
  • Wehus, I. K. (author)
  • Zacchei, A. (author)
  • Zonca, A. (author)
  • Stockholms universitetOskar Klein-centrum för kosmopartikelfysik (OKC) (creator_code:org_t)

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  • In:Astronomy and Astrophysics: EDP Sciences6430004-63611432-0746

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