Astrofísicas: Grupo local

  • Publicación
    Nucleosynthesis and the Inhomogeneous Chemical Evolution of the Carina Dwarf Galaxy
    The detailed abundances of 23 chemical elements in nine bright red giant branch stars in the Carina dwarf spheroidal galaxy are presented based on high...
  • Publicación
    Observational Discovery of the Asymptotic Giant Branch Bump in Densely Populated Color-Magnitude Diagrams of Galaxies and Star Clusters
    The huge photometric databases that are being created for stars in the Magellanic Clouds and in Local Group galaxies not only allow a detailed study of the star...
  • Publicación
    Old Main-Sequence Turnoff Photometry in the Small Magellanic Cloud. I. Constraints on the Star Formation History in Different Fields
    We present ground-based B- and R-band color-magnitude diagrams (CMDs) reaching the oldest main-sequence (MS) turnoffs with good photometric accuracy for 12...
  • Publicación
    Old Main-Sequence Turnoff Photometry in the Small Magellanic Cloud. II. Star Formation History and its Spatial Gradients
    We present a quantitative analysis of the star formation history (SFH) of 12 fields in the Small Magellanic Cloud (SMC) based on unprecedented deep [(B - R), R]...
  • Publicación
    Old Main-Sequence Turnoff Photometry in the SMC
    We present ground-based B and R-band color-magnitude diagrams (CMDs) of unprecedented depth for twelve fields in the Small Magellanic Cloud (SMC). They reach...
  • Publicación
    On the anticorrelation between pericentric distance and inner dark matter density of Milky Way's dwarf spheroidal galaxies
    An anticorrelation between the central density of the dark matter (DM) halo (ρ 150, DM) and the pericentric distances (r p) of the Milky Way's (MW's) dwarf...
  • Publicación
    On the Central Helium-burning Variable Stars of the LeoI Dwarf Spheroidal Galaxy
    We present a study of short-period, central helium-burning variable stars in the Local Group dwarf spheroidal galaxy LeoI, including 106 RR Lyrae stars and 51...
  • Publicación
    On the Distance and Reddening of the Starburst Galaxy IC 10
    We present deep and accurate optical photometry of the Local Group starburst galaxy IC 10. The photometry is based on two sets of images collected with the...
  • Publicación
    On the most luminous planetary nebulae of M 31
    Context. The planetary nebula luminosity function (PNLF) is a standard candle that comprises a key rung on the extragalactic distance ladder. The method is...