Journal: Astronomy and Astrophysics

  • Publication
    On the functional form of the metallicity-giant planet correlation
    Context. It is generally accepted that the presence of a giant planet is strongly dependent on the stellar metallicity. A stellar mass dependence has also been...
  • Publication
    On the importance of the few most massive stars: The ionizing cluster of NGC 588
    We present the results of a double analysis of the ionizing cluster in NGC 588, a giant HII region (GHR) in the outskirts of the nearby galaxy M 33. For this...
  • Publication
    On the interpretation of the optical spectra of L-type dwarfs
    We present synthetic optical spectra in the red and far-red (640-930 nm) of a sample of field L dwarfs suitably selected to cover this new spectral class, and...
  • Publication
    On the kinematics of the neutron star low mass X-ray binary Cen X-4
    We present the first determination of the proper motion of the neutron star low mass X-ray binary Cen X-4 measured from relative astrometry of the secondary...
  • Publication
    On the missing second generation AGB stars in NGC 6752
    In recent years the view of Galactic globular clusters as simple stellar populations has changed dramatically, it is now thought that basically all globular...
  • Publication
    On the morphology of sigma-drop galaxies
    Context: Local reductions of the stellar velocity dispersion in the central regions of galaxies are known as sigma-drops (σ-drops). Knowing the origin of these...
  • 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 nature of candidate luminous blue variables in M 33
    Context. Luminous blue variables (LBVs) are a class of highly unstable stars that have been proposed to play a critical role in massive stellar evolution as...
  • Publication
    On the nature of kink MHD waves in magnetic flux tubes
    Context: Magnetohydrodynamic (MHD) waves are often reported in the solar atmosphere and usually classified as slow, fast, or Alfvén. The possibility that these...