Astrophysical: Galaxies

  • Publication
    IC 10: More evidence that it is a blue compact dwarf
    We present optical spectroscopy of H Ii regions in the Local Group galaxy IC 10 and UBVR photometry of foreground stars in three fields towards this galaxy...
  • Publication
    Identification of red supergiants in nearby galaxies with mid-IR photometry
    Context. The role of episodic mass loss in massive-star evolution is one of the most important open questions of current stellar evolution theory. Episodic mass...
  • Publication
    Identification of tidal features in deep optical galaxy images with convolutional neural networks
    Interactions between galaxies leave distinguishable imprints in the form of tidal features, which hold important clues about their mass assembly. Unfortunately...
  • Publication
    Identifying Sagittarius Stream Stars by Their APOGEE Chemical Abundance Signatures
    The SDSS-IV Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey provides precise chemical abundances of 18 chemical elements for ∼176,000 red...
  • News
    Images from the Hubble Space Telescope and GRANTECAN help to show how the first galaxies were formed
    One of the most interesting questions for astrophysicists for the past few decades is how and when did the first galaxies form. One of the possible answers to...
  • Publication
    Imaging and Spectrophotometry of Markarian 1094: Implications for the Recent Star Formation
    Narrowband Hα imaging and intermediate- and high-resolution optical spectrophotometry have been obtained for the blue compact dwarf Wolf-Rayet galaxy Mrk 1094...
  • Publication
    Imaging the Environment of a z = 6.3 Submillimeter Galaxy with SCUBA-2
    We describe a search for submillimeter emission in the vicinity of one of the most distant, luminous galaxies known, HerMES FLS3, at z = 6.34, exploiting it as...
  • Publication
    IMF and [Na/Fe] abundance ratios from optical and NIR spectral features in early-type galaxies
    We present a joint analysis of the four most prominent sodium-sensitive features (Na D, Na I λ8190Å, Na I λ1.14 μm, and Na I λ2.21 μm), in the optical and near...
  • Publication
    IMF radial gradients in most massive early-type galaxies
    Using new long-slit spectroscopy obtained with X-Shooter at ESO-VLT, we study, for the first time, radial gradients of optical and near-infrared initial mass...