Journal: Astronomy and Astrophysics

  • Publication
    Chemical characterisation of the X-shooter Spectral Library (XSL): [Mg/Fe] and [Ca/Fe] abundances
    Context. The X-shooter Spectral Library (XSL) is a large empirical stellar library used as a benchmark for the development of stellar population models. The...
  • Publication
    Chemical composition of B-type supergiants in the OB 8, OB 10, OB 48, OB 78 associations of M 31
    Absolute and differential chemical abundances are presented for the largest group of massive stars in M 31 studied to date. These results were derived from...
  • Publication
    Chemical composition of extremely metal-poor stars in the Sextans dwarf spheroidal galaxy
    Context: Individual stars in dwarf spheroidal galaxies around the Milky Way Galaxy have been studied both photometrically and spectroscopically. Extremely metal...
  • Publication
    Chemical composition of Galactic OB stars. I. CNO abundances in O9 stars
    We present NLTE abundances of CNO for a sample of four O9 stars in the Galaxy, together with new determinations of their stellar parameters, T_eff, log g...
  • Publication
    Chemical composition of Galactic OB stars. II. The fast rotator ζ Ophiuchi
    ζ Oph, HD 149757, is an O9.5 Vnn star with a very high projected rotational velocity (v sin i ≥ 340 km s-1). It is also a classical runaway star due to its high...
  • Publication
    Chemical composition of the young massive cluster NGC 1569-B
    Context. The chemical composition of young massive clusters (YMCs) provides stellar population information on their host galaxy. As potential precursors of...
  • Publication
    Chemical distribution of H II regions towards the Galactic anticentre
    Context. The study of the radial variations of metallicity across the Galactic disc is a powerful method for understanding the history of star formation and...
  • Publication
    Chemical evolution of elliptical galaxies with a variable IMF. A publicly available code
    Growing evidence in recent years suggests a systematic variation of the stellar initial mass function (IMF), being top-heavy for starburst galaxies and possibly...
  • Publication
    Chemical evolution of ultra-faint dwarf galaxies in the self-consistently calculated integrated galactic IMF theory
    The galaxy-wide stellar initial mass function (gwIMF) of a galaxy in dependence on its metallicity and star formation rate can be calculated by the integrated...