Present-day cosmic abundances - A comprehensive study of nearby early B-type stars and implications for stellar and Galactic evolution and interstellar dust models

  title={Present-day cosmic abundances - A comprehensive study of nearby early B-type stars and implications for stellar and Galactic evolution and interstellar dust models},
  author={M. Fernanda Nieva and Norbert Przybilla},
  journal={Astronomy and Astrophysics},
Aims. A carefully selected sample of early B-type stars in OB associations and the field within the solar neighbourhood is studi ed comprehensively. Present-day abundances for the astrophysically most interesting chemical elements are derived in order to investigate whether a present-day cosmic abundance standard can be established. Methods. High-resolution and high-S/N spectra of well-studied sharp-lined early B-type stars ar e analysed in non-LTE. Atmospheric parameters are derived from the… 

Hot stars and cosmic abundances

Hot massive stars are ideal indicators for present-day cosmic abundances. We review results from a non-LTE study of a larger sample of early B-type stars in the solar neighbourhood by Nieva &

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Fundamental parameters of B type stars

  • M. Nieva
  • Physics
    Proceedings of the International Astronomical Union
  • 2014
Abstract Fundamental parameters of 26 well-studied sharp-lined single early B-type stars in OB associations and in the field within a distance of ≤400 pc from the Sun are compared to high-precision


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