Astrophysical: Local Group

  • Publication
    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...
  • Publication
    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]...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    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...
  • Publication
    On the occurrence of tidal tails in the Carina dSph
    Wide field B,V photometry of the outer regions of the Carina dwarf spheroidal galaxy is presented. Six fields were observed to a distance from the centre up to...
  • Publication
    On the Radial Extent of the Dwarf Irregular Galaxy IC10
    We present new deep and accurate space (Advanced Camera for Surveys-Wide Field Planetary Camera 2 on board the Hubble Space Telescope) and ground-based (Suprime...