Publication type: Refereed

  • 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...
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    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...
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    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 Orion nebula derived from echelle spectrophotometry
    We present echelle spectroscopy in the 3500- to 7060-Å range for two positions of the Orion nebula. The data were obtained using the 2.1-m telescope at...
  • Publication
    Chemical composition of the solar surface
    The Sun provides a standard reference against which we compare the chemical abundances found anywhere else in the Universe. Nevertheless, there is not a unique...
  • 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 Composition of Two Bright, Extremely Metal-poor Stars from the SDSS MARVELS Pre-survey
    SDSS J082625.70+612515.10 (V = 11.4 [Fe/H] = ‑3.1) and SDSS J134144.60+474128.90 (V = 12.4 [Fe/H] = ‑3.2) were observed with the SDSS 2.5m telescope as part of...
  • Publication
    Chemical Compositions of Field and Globular Cluster RR Lyrae Stars. I. NGC 3201
    We present a detailed spectroscopic analysis of horizontal branch stars in the globular cluster NGC 3201. We collected optical (4580–5330 Å), high-resolution (...