Astrofísicas: Instrumentación

  • Publicación
    An integral field spectrograph for the 4-m European Solar Telescope
    This paper presents the proposal of a high resolution, integral field spectrograph that is currently being designed for the 4-meter aperture European Solar...
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    Applicability of Milne-Eddington inversions to high spatial resolution observations of the quiet Sun
    Context. The physical conditions of the solar photosphere change on very small spatial scales both horizontally and vertically. Such a complexity may pose a...
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    Assessing the Behavior of Modern Solar Magnetographs and Spectropolarimeters
    The design and later use of modern spectropolarimeters and magnetographs require a number of tolerance specifications that allow the developers to build the...
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    Asteroid reflectance spectra from Gaia DR3: Near-UV in primitive asteroids
    Context. In the context of charge-coupled devices (CCDs), the ultraviolet (UV) region has mostly remained unexplored after the 1990s. Gaia DR3 offers the...
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    Asteroids' reflectance from Gaia DR3: Artificial reddening at near-UV wavelengths
    Context. Observational and instrumental difficulties observing small bodies below 0.5 μm make this wavelength range poorly studied compared with the visible and...
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    Astronomical site ranking based on tropospheric wind statistics
    High-altitude wind speeds have been adopted as a parameter for astronomical site selection based on the relationship found at the Paranal and Cerro Pachón sites...
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    Atmospheric optical turbulence at the Roque de los Muchachos Observatory: data base and recalibration of the generalized SCIDAR data
    We present the largest data base so far of atmospheric optical turbulence profiles [197 035 individual C2N(h)] for an astronomical site, the Roque de los...
  • Publicación
    Balloon-Borne Submillimeter Polarimetry of the Vela C Molecular Cloud: Systematic Dependence of Polarization Fraction on Column Density and Local Polarization-Angle Dispersion
    We present results for Vela C obtained during the 2012 flight of the Balloon-borne Large Aperture Submillimeter Telescope for Polarimetry. We mapped polarized...
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    Benchmark stars, benchmark spectrographs. Detailed spectroscopic comparison of ESPRESSO, PEPSI, and HARPS data for Gaia benchmark stars
    Context. Gaia benchmark stars are selected to be calibration stars for different spectroscopic surveys. Very high-quality and homogeneous spectroscopic data for...