Publication type: Refereed

  • Publication
    The lithium abundance in the extremely metal-deficient dwarf G 64-12
    The authors have measured the 7Li abundance in G 64-12 an extremely metal-deficient dwarf [Fe/H] = -3.5 (Carney and Peterson, 1981) with effective temperature...
  • Publication
    The Lithium Depletion Boundary and the Age of the Hyades Cluster
    Determination of the lithium depletion boundary (LDB), i.e., the observational limit below which the cores of very low-mass objects do not reach high enough...
  • Publication
    The lithium resonance line in T Tauri stars
    High-resolution spectra provide evidence of the Li-I 6707 line in 28 of the stars, and the significance of the results is discussed. The Li-I equivalent widths...
  • Publication
    The Lithium Test in Young Brown Dwarf Candidates
    We present high-, mid-, and low-resolution spectroscopy of the field brown dwarf candidate PC 0025+0447 (M9.5) spanning a 4 yr baseline (1994-1998). The...
  • Publication
    The little-studied cluster Berkeley 90. I. LS III +46 11: a very massive O3.5 If* + O3.5 If* binary
    Context. It appears that most (if not all) massive stars are born in multiple systems. At the same time, the most massive binaries are hard to find owing to...
  • Publication
    The little-studied cluster Berkeley 90. II. The foreground ISM
    Context. Nearly one century after their discovery, the carrier or carriers of diffuse interstellar bands (DIBs) is/are still unknown and there are few...
  • Publication
    The Local Group Census: Planetary nebulae in IC 10, Leo A and Sextans A
    In the framework of our narrow-band survey of the Local Group galaxies, we present the results of the search for planetary nebulae (PNe) in the dwarf irregular...
  • Publication
    The Local Group Census: Planetary nebulae in Sextans B
    Five planetary nebulae (PNe) have been discovered in the nearby dwarf irregular galaxy. Emission line images were obtained using the Wide Field Camera of the 2...
  • Publication
    The Local Group Census: planetary nebulae in the spheroidal galaxies NGC 147, NGC 185 and NGC 205
    In the framework of our narrow-band survey of Local Group galaxies, we present the results of the search for planetary nebulae (PNe) in three spheroidal...