Astrofísicas: Instrumentación

  • Publicación
    Planck early results. II. The thermal performance of Planck
    The performance of the Planck instruments in space is enabled by their low operating temperatures, 20 K for LFI and 0.1 K for HFI, achieved through a...
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    Planck early results. III. First assessment of the Low Frequency Instrument in-flight performance
    The scientific performance of the Planck Low Frequency Instrument (LFI) after one year of in-orbit operation is presented. We describe the main optical...
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    Planck early results. IV. First assessment of the High Frequency Instrument in-flight performance
    The Planck High Frequency Instrument (HFI) is designed to measure the temperature and polarization anisotropies of the cosmic microwave background and Galactic...
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    Planck intermediate results. XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth
    This paper describes the identification, modelling, and removal of previously unexplained systematic effects in the polarization data of the Planck High...
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    Planck pre-launch status: Calibration of the Low Frequency Instrument flight model radiometers
    The Low Frequency Instrument (LFI) on-board the ESA Planck satellite carries eleven radiometer subsystems, called radiometer chain assemblies (RCAs), each...
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    Planck pre-launch status: Low Frequency Instrument calibration and expected scientific performance
    We present the calibration and scientific performance parameters of the Planck Low Frequency Instrument (LFI) measured during the ground cryogenic test campaign...
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    Planck pre-launch status: The Planck mission
    The European Space Agency's Planck satellite, launched on 14 May 2009, is the third-generation space experiment in the field of cosmic microwave background (CMB...
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    Planck pre-launch status: The Planck-LFI programme
    This paper provides an overview of the Low Frequency Instrument (LFI) programme within the ESA Planck mission. The LFI instrument has been developed to produce...
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    Polarimetric calibration for large telescopes
    One of the calibration problems posed by the new generation of mid-infrared instrumentation on 8--10~m class telescopes is that of polarimetric calibration. To...