Journal: Astronomy and Astrophysics

  • Publication
    A search for evidence of irradiation in Centaurus X-4 during quiescence
    Aims.We present a study of the neutron star X-Ray Transient Cen X-4. Our aim is to look for any evidence of irradiation of the companion with a detailed...
  • Publication
    A search for Galactic post-asymptotic giant branch stars in Gaia DR3
    Context. When low- and intermediate-mass stars leave the asymptotic giant branch (AGB) phase, and before they reach the planetary nebula stage, they enter a...
  • Publication
    A search for hydrogenated fullerenes in fullerene-containing planetary nebulae
    Detections of C60 and C70 fullerenes in planetary nebulae (PNe) of the Magellanic Clouds and of our own Galaxy have raised the idea that other forms of carbon...
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    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)...