Journal: Astronomy and Astrophysics

  • Publication
    A search for Jovian-mass planets around CM Draconis using eclipse minima timing.
    For the eclipsing binary system CM Draconis, eclipse minimum times have been monitored with high precision between 1994 and 1999. Periodic deviations of minimum...
  • Publication
    A search for lithium in cataclysmic binaries.
    The discovery of Li in the late type secondary of the black hole binary V404 Cyg has motivated considerable interest in the presence of this light element in...
  • Publication
    A search for lithium in metal-poor L dwarfs
    Aims: The aim of the project is to search for lithium in absorption at 6707.8 Å to constrain the nature and mass of the brightest low-metallicity L-type dwarfs...
  • Publication
    A search for magnetic fields on central stars in planetary nebulae
    Context. One of the possible mechanisms responsible for the panoply of shapes in planetary nebulae is the presence of magnetic fields that drive the ejection of...
  • Publication
    A search for photometric variability of hydrogen-deficient planetary-nebula nuclei
    Aims.We searched for photometric variability in a sample of hot, hydrogen-deficient planetary nebula nuclei (PNNi) with "PG 1159" or "O VI" spectral type, most...
  • Publication
    A search for planetary nebulae in M33
    We searched for planetary nebulae (PNe) in the nearby spiral galaxy M33 using the Wide Field Camera at the 2.54 m Isaac Newton Telescope of La Palma (Spain)...
  • Publication
    A search for planetary-mass objects and brown dwarfs in the Upper Scorpius association
    We report the results of a deep photometric search for planets and brown dwarfs in the nearby young OB Upper Scorpius association. We obtained optical (I) and...
  • Publication
    A search for planets in the old open cluster NGC 6791
    We describe the results of a search for transit-like events caused by giant planets occulting stars in the old, metal-rich open cluster NGC 6791 based on BVI...
  • Publication
    A search for solar g modes in the GOLF data
    With over 5 years of GOLF data having some 90% continuity, a new attempt has been made to search for possible solar g modes. Statistical methods are used, based...