Astrophysical: Instrumentation

  • Publication
    Diagnostics for spectropolarimetry and magnetography
    An assessment on the capabilities of modern spectropolarimeters and magnetographs is in order since most of our astrophysical results rely upon the accuracy of...
  • Publication
    Differential atmospheric refraction in integral-field spectroscopy: Effects and correction. Atmospheric refraction in IFS
    The basic concepts for determining the effect of differential atmospheric refraction on integral-field (two-dimensional) spectroscopic observations are...
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    Discovery of Two Very Low Mass Binaries: Final Results of an Adaptive Optics Survey of Nearby M6.0-M7.5 Stars
    We present updated results of a high-resolution, magnitude-limited (Ks 0.8, ΔKs 20 AU), very low mass (VLM; Mtot ~3 AU and mass ratios q>~0.6. Within these...
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    Dust production and coma morphology of 67P/Churyumov-Gerasimenko during the 2002/2003 apparition. II. A comparative study of dust production in 46P/Wirtanen and 67P/Churyumov-Gerasimenko during their 2002/2003 apparition
    A comparison is made of the light curves and and dust production of the initial target for the ROSETTA mission, 46P/Wirtanen and the new target 67P/Churyumov...
  • Publication
    Effect of telescope vibrations upon high angular resolution imaging
    We have analysed short-exposure high-resolution images obtained on the William Herschel Telescope (WHT), Big Telescope Azimuthal (BTA) and Canada-France-Hawaii...
  • Publication
    EMIR Data Reduction Pipeline
    We present the concept and current status of the Data Reduction Pipeline (DRP) for EMIR (Espectrógrafo Multi-Objeto Infrarrojo) which is a state-of-the-art near...
  • Publication
    EMIR, the GTC NIR multi-object imager-spectrograph
    EMIR, currently entering into its fabrication and AIV phase, will be one of the first common user instruments for the GTC, the 10 meter telescope under...
  • Publication
    EMIR, the near-infrared camera and multi-object spectrograph for the GTC. EMIR at GTC
    We present EMIR, a powerful near-infrared (NIR) camera and multi-object spectrograph (MOS) installed at the Nasmyth focus of the 10.4 m GTC. EMIR was...
  • Publication
    EMIR: a Near-Infrared Multiobject Spectrograph for the GTC
    In this contribution, we review the overall features of EMIR, the NIR multiobject spectrograph of the GTC. EMIR is at present in the middle of its PD phase and...