Publication type: Non-refereed

  • Publication
    A spectral atlas of Landolt stars for a reliable mid-IR spectrophotometric calibration for large telescopes
    It is often stated that there is no point in obtaining mid-infrared data with S/N>20, even in the best of cases, because it is impossible to obtain a...
  • Publication
    A Spectral Diagnostic for Density-Bounded HII Regions
    Our spectral diagnostic based on the intensity of the [OI]λ6300Å line indicates that many observed HII regions are indeed density-bounded. The estimated...
  • Publication
    A spectrophotometric study of the peculiar young open cluster Berkeley 87
    A spectrophotometric study of the peculiar open cluster Berkeley 87 is presented; the measurements show that most of the members are young, heavily reddened OB...
  • Publication
    A spectroscopic analysis of the Trapezium Cluster stars
    We consider the Orion Nebula (M 42) within a project aimed at studying the interaction between massive stars and their surrounding ISM. This is an HII region...
  • Publication
    A spectroscopic atlas of post-AGB stars and planetary nebulae selected from the IRAS point source catalogue.
    The spectroscopic observations were conducted during several runs spanning 15 years from March 1988 to June 2003. The observations from the Southern Hemisphere...
  • Publication
    A Spectroscopic Census Of L Dwarfs Observed By Gaia
    The ESA cornerstone mission Gaia will revolutionise astronomy observing objects as diverse as minor planets, stars,and galaxies out to QSOs. We estimate that...
  • Publication
    A Spectroscopic Survey of NGC 7419
    The reddened open cluster NGC7419 is believed to have a very high fraction of Be stars and present an exceptionally high number of red supergiants (five for no...
  • Publication
    A spectroscopic view of stellar populations in bulges of low surface brightness galaxies .
    We present the radial profiles of the age, metallicity and alpha /Fe enhancement of the stellar populations in the bulge-dominated region for a sample of eight...
  • Publication
    A Spitzer search for transiting exoplanets around ultra-cool dwarf stars viewed equator-on
    Exoplanet population studies indicate that small rocky planets may be common around very low-mass stars and brown dwarfs: "ultra-cool" dwarfs. Temperate rocky...