Journal: Astronomy and Astrophysics

  • Publication
    The massive multiple system HD 64315
    Context. The O6 Vn star HD 64315 is believed to belong to the star-forming region known as NGC 2467, but previous distance estimates do not support this...
  • Publication
    The massive relic galaxy NGC 1277 is dark matter deficient. From dynamical models of integral-field stellar kinematics out to five effective radii
    According to the Λ cold dark matter (ΛCDM) cosmology, present-day galaxies with stellar masses M ⋆ > 10 11 M ⊙ should contain a sizable fraction of dark matter...
  • Publication
    The mean star formation rate of X-ray selected active galaxies and its evolution from z ~ 2.5: results from PEP-Herschel
    We study relationships between star-formation rate (SFR) and the accretion luminosity and nuclear obscuration of X-ray selected active galactic nuclei (AGNs)...
  • Publication
    The merging/AGN connection. II. Ionization of the circumnuclear regions
    We report the first results of a study of a sample of 20 galaxy mergers/interacting systems, using the VIMOS and PMAS integral field spectrographs. For each...
  • Publication
    The metal-poor edge of the Milky Way's "thin disc"
    Context. The emergence of the disc in our Galaxy and the relation between thick and thin disc formation and evolution is still a matter of debate. The chemo...
  • Publication
    The metal-poor end of the Spite plateau. I. Stellar parameters, metallicities, and lithium abundances
    Context. The primordial nature of the Spite plateau is at odds with the WMAP satellite measurements, implying a primordial Li production at least three times...
  • Publication
    The metal-rich nature of stars with planets
    With the goal of confirming the metallicity ``excess'' present in stars with planetary-mass companions, we present in this paper a high-precision spectroscopic...
  • Publication
    The metallicity gradient of M 33: chemical abundances of H ii regions
    Context: We present spectroscopic observations of a sample of 72 emission-line objects, including mainly H ii regions, in the spiral galaxy M 33. Spectra were...
  • Publication
    The methane ice rich surface of large TNO 2005 FY_9: a Pluto-twin in the trans-neptunian belt?
    Context: .The population of known large trans-neptunian objects (TNOs) is growing very fast and the knowledge of their physical properties is a key issue to...