Astrophysical: Polarimeters

  • Publication
    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...
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    Polarimetric Littrow Spectrograph - instrument calibration and first measurements
    We present first measurements and the calibration procedure for the Polarimetric Littrow Spectrograph (POLIS) operated at the Vacuum Tower Telescope on Tenerife...
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    QUIJOTE scientific results - IV. A northern sky survey in intensity and polarization at 10-20 GHz with the multifrequency instrument
    We present QUIJOTE intensity and polarization maps in four frequency bands centred around 11, 13, 17, and 19 GHz, and covering approximately 29 000 deg 2...
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    SOPHISM: An End-to-end Software Instrument Simulator
    We present a software simulator for the modeling of astronomical instrumentation, which includes platform effects and software processing. It is an end-to-end...
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    Spectral lines unaffected by instrumental polarization. 1: Theory
    We propose a new approach to minimize the instrumental polarization (IP) of current polarimetric observations. It is shown how the instrumental polarization can...
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    Spectro-polarimetry in the era of large solar telescopes
    This paper discusses some of the challenges of spectro-polarimetric observations with a large aperture solar telescope such as the ATST or the EST. The observer...
  • Publication
    Spectropolarimetric observations of the solar atmosphere in the Hα 6563 Å line
    We present novel spectropolarimetric observations of the hydrogen Hα line taken with the Zürich Imaging Polarimeter (ZIMPOL) at the Gregory Coudé Telescope of...
  • Publication
    Submillimeter Polarization Spectrum in the Vela C Molecular Cloud
    Polarization maps of the Vela C molecular cloud were obtained at 250, 350, and 500 μm during the 2012 flight of the balloon-borne telescope BLASTPol. These...