Planck 2013 results. III. LFI systematic uncertainties

Research output: Contribution to journalArticle

Details

Original languageEnglish
Article number3
Number of pages23
JournalASTRONOMY AND ASTROPHYSICS
Volume571
Issue numberid. A3
StatePublished - Nov 2014
MoE publication typeA1 Journal article-refereed

Researchers

  • N. Aghanim
  • C. Armitage-Caplan
  • M. Arnaud
  • M. Ashdown
  • F. Atrio-Barandela
  • J. Aumont
  • C. Baccigalupi
  • A. J. Banday
  • R. B. Barreiro
  • E. Battaner
  • K. Benabed
  • A. Benoit
  • A. Benoit-Levy
  • J. -P. Bernard
  • M. Bersanelli
  • P. Bielewicz
  • J. Bobin
  • J. J. Bock
  • A. Bonaldi
  • L. Bonavera
  • J. R. Bond
  • J. Borrill
  • F. R. Bouchet
  • M. Bridges
  • M. Bucher
  • C. Burigana
  • R. C. Butler
  • J. -F. Cardoso
  • A. Catalano
  • A. Chamballu
  • L. -Y Chiang
  • P. R. Cristensen
  • S. Church
  • S. C. Olombi
  • L. P. L. Colombo
  • B. P. Crill
  • M. Cruz
  • A. Curto
  • F. Cuttaia
  • L. Danese
  • R. D. Davies
  • R. J. Davis
  • P. de Bernardis
  • A. de Rose
  • G. de Zotti
  • J. Delabrouillei
  • J. Dick
  • C. Dickinson
  • J. M. Diego
  • Anne Lähteenmäki

  • Planck Collaboration

Research units

  • University of Oxford
  • University of Salamanca
  • University of Granada
  • Univ Calif Berkeley, University of California Berkeley, University of California System, Space Sci Lab
  • Telecom ParisTech
  • Acad Sinica, Academia Sinica - Taiwan, Inst Astron & Astrophys
  • Univ Cantabria, Universidad de Cantabria, Dept Matemat Estadist & Computac
  • Univ Paris 11, Centre National de la Recherche Scientifique (CNRS), University of Paris Sud - Paris XI, CNRS, Inst Astrophys Spatiale, UMR 8617)
  • CEA Saclay, CEA, Centre National de la Recherche Scientifique (CNRS), PRES University Sorbonne Paris Cite, University of Paris Diderot - Paris VII, Univ Paris Diderot, CNRS, CEA DSM,IRFU,Serv Astrophys,Lab AIM
  • Cosmol Cambridge, Kavli Inst
  • International School for Advanced Studies
  • Univ Toulouse, PRES Universite de Toulouse, Universite Toulouse III - Paul Sabatier, Universite de Toulouse, UPS, OMP, IRAP
  • Univ Cantabria, Consejo Superior de Investigaciones Cientificas (CSIC), Universidad de Cantabria, CSIC, Inst Fis Cantabria
  • Univ Paris 06, Pierre & Marie Curie University - Paris 6, UMR7095
  • CALTECH, California Institute of Technology, National Aeronautics & Space Administration (NASA), Jet Propulsion Laboratory, Jet Prop Lab
  • IASF Bologna, Istituto Nazionale Astrofisica - Italy, INAF
  • Univ Manchester, Jodrell Bank Centre for Astrophysics, University of Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys
  • University of Toronto
  • Univ Paris Diderot, CEA, Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, PSL Research University Paris, University of Paris Diderot - Paris VII, PRES University Sorbonne Paris Cite, National Institute of Nuclear & Particle Physics (IN2P3), Sorbonne Paris Cite, CNRS, IN2P3,CEA Irfu,Observ Paris,APC
  • Univ Grenoble 1, Centre National de la Recherche Scientifique (CNRS), Institut National Polytechnique de Grenoble, Joseph Fourier University, National Institute of Nuclear & Particle Physics (IN2P3), Lab Phys Subatom & Cosmol, CNRS, Inst Natl Polytech Grenoble,IN2P3
  • Niels Bohr Inst, Niels Bohr Institute, University of Copenhagen
  • Stanford University
  • California Institute of Technology
  • Sapienza University Rome

Abstract

We present the current estimate of instrumental and systematic effect uncertainties for the Planck-Low Frequency Instrument relevant to the first release of the Planck cosmological results. We give an overview of the main effects and of the tools and methods applied to assess residuals in maps and power spectra. We also present an overall budget of known systematic effect uncertainties, which are dominated by sidelobe straylight pick-up and imperfect calibration. However, even these two effects are at least two orders of magnitude weaker than the cosmic microwave background fluctuations as measured in terms of the angular temperature power spectrum. A residual signal above the noise level is present in the multipole range l <20, most notably at 30GHz, and is probably caused by residual Galactic straylight contamination. Current analysis aims to further reduce the level of spurious signals in the data and to improve the systematic effects modelling, in particular with respect to straylight and calibration uncertainties.

    Research areas

  • cosmic background radiation, cosmology: observations, methods: data analysis, PERFORMANCE, RADIOMETERS, MAPS, SKY

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