Astrophysical: Spectroscopy

  • Publication
    Testing the Optics of the instrument Elmer
    Elmer is a visible imager and spectrograph for the GTC. Elmer Optics has been exhaustively tested at different steps, from the blanks to the final assemblies in...
  • Publication
    The 99942 Apophis observational campaign at the Canary Islands observatories during its 2021 close approach: preliminary results
    Potentially hazardous asteroid (PHA) 99942 Apophis, with a diameter 380-393 m (Licandro et al. 2016), came to its 2021 close approach on March 6, 2021, at 01:06...
  • Publication
    The APO-K2 Catalog. I. 7500 Red Giants with Fundamental Stellar Parameters from APOGEE DR17 Spectroscopy and K2-GAP Asteroseismology
    We present a catalog of fundamental stellar properties for ~7500 evolved stars, including stellar radii and masses, determined from the combination of...
  • Publication
    The APOGEE Data Release 16 Spectral Line List
    The updated H-band spectral-line list (from λ15000-17000) adopted by the Apache Point Observatory Galactic Evolution Experiment (APOGEE) for the SDSS-IV Data...
  • Publication
    The EChO science case
    The discovery of almost two thousand exoplanets has revealed an unexpectedly diverse planet population. We see gas giants in few-day orbits, whole multi-planet...
  • Talk
    The GREGOR Fabry-Pérot Interferometer: Status, prospects, and scientific aims
    The GREGOR Fabry-Pérot Interferometer (GFPI) is one of the first-light post-focus instruments for the German 1.5-meter GREGOR solar telescope at the...
  • Publication
    The kinematics and morphology of NGC 520: One, two, or three galaxies
    The peculiar galaxy NGC 520 (Arp 157) is often interpreted as an interacting pair of galaxies. The identification of the two bulges and overall morphology of...
  • Publication
    The Large Early Galaxy Astrophysics Census (LEGA-C) Data Release 3: 3000 High-quality Spectra of K<SUB>s</SUB>-selected Galaxies at z &gt; 0.6
    We present the third and final data release of the Large Early Galaxy Astrophysics Census (LEGA-C), an ESO/Very Large Telescope public spectroscopic survey...
  • Publication
    The Mass of the Neutron Star in CYG X-2 (V1341 CYG)
    Cygnus X-2 is one of the brightest and longest known X-ray sources. We present high resolution optical spectroscopy of Cyg X-2 obtained over 4 years which gives...