Publication type: Refereed

  • Publication
    Spectroscopic metallicities for planet-host stars: Extending the samples
    We present stellar parameters and metallicities for 29 planet-host stars, as well as for a large volume-limited sample of 53 stars not known to be orbited by...
  • Publication
    Spectroscopic monitoring of active galactic nuclei. 3: Size of the broad line region in NGC 3227
    We present in this work the results of a five-month monitoring campaign of the active galactic nucleus in NGC 3227. Both the Balmer H-beta and H-alpha emission...
  • Publication
    Spectroscopic monitoring of active galactic nuclei. II - The Seyfert-1 galaxy NGC 3516
    We present results of a five month spectroscopic monitoring campaign of the Seyfert-1 galaxy NGC 3516. Using a new calibration method and applying a correction...
  • Publication
    Spectroscopic observations of AB supergiants in M 33.
    We have observed 10 luminous blue stars in M 33 at intermediate dispersion and have determined spectral types and luminosity classes from the blue and red...
  • Publication
    Spectroscopic observations of AB-supergiants in M 31 and M 33
    We have observed a number of the most luminous A and B supergiants in the galaxies M 31 and M 33 at intermediate dispersion obtaining both blue and red...
  • Publication
    Spectroscopic Observations of Convective Patterns in the Atmospheres of Metal-poor Stars
    Convective line asymmetries in the optical spectrum of two metal-poor stars, Gmb 1830 and HD 140283, are compared to those observed for solar metallicity stars...
  • Publication
    Spectroscopic observations of new Oort cloud comet 2006 VZ13 and four other comets
    Spectral data are presented for comets 2006 VZ13 (LINEAR), 2006 K4 (NEAT), 2006 OF2 (Broughton), 2P/Encke and 93P/Lovas I, obtained with the Cerro Tololo Inter...
  • Publication
    Spectroscopic observations of the δ Scorpii binary during its recent periastron passage
    The bright star delta Sco has been considered a typical B0-type object for many years. Spectra of the star published prior to 1990 showed no evidence of...
  • Publication
    Spectroscopic observations of V455 Andromedae superoutburst in 2007: The most exotic spectral features in dwarf nova outbursts
    We present our spectroscopic observations of V455 Andromedae during the 2007 superoutburst. Our observations cover this superoutburst from around the optical...