Astrofísicas: Grupo local

  • Publicación
    The Carina Project. VII. Toward the Breaking of the Age-Metallicity Degeneracy of Red Giant Branch Stars Using the C U, B, I Index
    We present an analysis of photometric and spectroscopic data of the Carina dSph galaxy, testing a new approach similar to that used to disentangle multiple...
  • Publicación
    The Carina Project: Absolute and Relative Calibrations
    We discuss the reduction strategy adopted to perform the relative and the absolute calibration of the Wide Field Imager (WFI) available at the 2.2m ESO/MPI...
  • Publicación
    The Carina Project: bright variables
    We present recent results on variable stars in the Carina Dwarf Galaxy based on B,V time series data collected over three consecutive nights with the Wide Field...
  • Publicación
    The Carina Project: color magnitude diagram and radial distribution
    We present B, V photometric data of the Carina Dwarf Spheroidal Galaxy (dSph), collected with the Wide Field Imager (WFI) available at the 2.2m MPI/ESO...
  • Publicación
    The Carina Project: Photometric Accuracy
    We present B,V photometric data of the Carina dwarf Spheroidal (dSph) galaxy, collected with the Mosaic Camera (36×36 arcmin2) available at the 4m CTIO Blanco...
  • Publicación
    The Census of Planetary Nebulae in the Local Group
    We have been intensively searching for PNe in nearby galaxies as one of the main objectives of the Local Group Census (LGC). The LGC is a narrow-band survey of...
  • Publicación
    The chemical content of nearby galaxies from planetary nebulae: NGC 147
    We report the results of spectroscopic observations, obtained with the Gemini Multi-Object Spectrograph, of eight planetary nebulae (PNe) in the dwarf...
  • Publicación
    The Chemical Enrichment History of the Fornax Dwarf Spheroidal Galaxy from the Infrared Calcium Triplet
    Near-infrared spectra were obtained for 117 red giants in the Fornax dwarf spheroidal galaxy with the FORS1 spectrograph on the VLT, in order to study the...
  • Publicación
    The Chemical Enrichment History of the Small Magellanic Cloud and its Gradients
    We present stellar metallicities derived from Ca II triplet spectroscopy in over 350 red giant branch stars in 13 fields distributed in different positions in...