Astrofísicas: Galaxias espirales

  • Charla
    (1) Stellar kinematics in double-barred galaxies: the sigma-hollows (2) A colorful view on the outskirt of spiral galaxies: clues on disk-formation scenarios
    (1) We present SAURON integral-field stellar velocity and velocity dispersion maps for four double-barred early-type galaxies: NGC2859, NGC3941,NGC4725 and...
  • Publicación
    A Minor-Merger Origin for Inner Disks and Rings in Early-Type Galaxies
    Nuclear disks and rings are frequent galaxy substructures, for a wide range of morphological types [from S0 to Sc, see e.g., 1, 2]. We have investigated the...
  • Publicación
    A photometric study of the double ring structure of NGC 4736
    Photometric results for the galaxy NGC 4736 are presented, including IR and visible profiles. After correction for the extinction within the galaxy based on...
  • Publicación
    Abundance analysis of giant H II regions in M51
    Spectrophotometric observations in the optical and near-infrared of six giant H II regions in the high metallicity spiral galaxy M51 are presented. Five of the...
  • Publicación
    Abundance analysis of giant H II regions in nearby spirals.
    Spectrophotometric data of giant H II regions covering the spectral range from λ3600 to 9700 Å in the spiral galaxies M101 and M51 have been analyzed in order...
  • Publicación
    Abundance Gradients in M33: the Use of Planetary Nebulae
    We present our observations of several planetary nebulae in the central zones of the spiral galaxy M33. We combine the abundances we derived for our objects...
  • Publicación
    An improved evolutionary model for stellar population applied to NGC 2903
    The revised physical assumptions incorporated into a previously published evolutionary model for stellar population synthesis in galaxies (Casuso et al., 1989)...
  • Publicación
    Annular structure analysis of the starburst spiral galaxy NGC 7217.
    Not Available
  • Publicación
    Astronomical observations and synthesis of ellipsoidal triaxial structures. I. Geometrical considerations.
    Isophotal analyses developed in recent years (CCD images and numerical mapping techniques) have revealed that triaxial structures are frequently present in...
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