Tipo de publicación: Con árbitro

  • Publicación
    On the Absolute Age of the Globular Cluster M92
    We present precise and deep optical photometry of the globular M92. Data were collected in three different photometric systems: Sloan Digital Sky Survey (g ', r...
  • Publicación
    On the Absolute Age of the Metal-rich Globular M71 (NGC 6838). I. Optical Photometry
    We investigated the absolute age of the Galactic globular cluster M71 (NGC 6838) using optical ground-based images (u\prime ,g\prime ,r\prime ,i\prime ,z\prime...
  • Publicación
    On the Abundance Discrepancy Problem in H II Regions
    The origin of the abundance discrepancy, i.e., the fact that abundances derived from recombination lines are larger than those from collisionally excited lines...
  • Publicación
    On the abundance of lithium in T Coronae Borealis
    We have obtained high-resolution echelle spectroscopy of the recurrent nova T CrB. We find that the surface lithium abundance in T CrB is significantly enhanced...
  • Publicación
    On the accretion of a new group of galaxies on to Virgo - II. The effect of pre-processing on the stellar population content of dEs
    Using MUSE spectra, we investigate how pre-processing and accretion on to a galaxy cluster affect the integrated stellar population properties of dwarf early...
  • Publicación
    On the accretion of a new group of galaxies on to Virgo: I. Internal kinematics of nine in-falling dEs
    Galaxy environment has been shown to play an important role in transforming late-type, star-forming galaxies to quiescent spheroids. This transformation is...
  • Publicación
    On the accretion of a new group of galaxies onto Virgo - III. The stellar population radial gradients of dEs
    Using MUSE data, we investigate the radial gradients of stellar population properties (namely age, [M/H], and the abundance ratio of α elements [α/Fe]) for a...
  • Publicación
    On the acoustic cut-off frequency of the sun
    Full solar disk observations of radial velocity, obtained with the IRIS network of resonant scattering spectrometers, are used to analyze the acoustic p-mode...
  • Publicación
    On the action of UV photons on hydrogenated fulleranes C60H36 and C60D36
    Fulleranes, the hydrogenated fullerenes C60H36 and C60D36 have been synthesized in n-hexane where they show an absorption maximum at 217 nm in their electronic...