Hertzsprung-Russell diagram and mass distribution of barium stars

@article{Escorza2017HertzsprungRussellDA,
  title={Hertzsprung-Russell diagram and mass distribution of barium stars},
  author={A. Escorza and H. Boffin and A. Jorissen and S. Eck and L. Siess and H. V. Winckel and D. Karinkuzhi and S. Shetye and D. Pourbaix},
  journal={Astronomy and Astrophysics},
  year={2017},
  volume={608},
  pages={13}
}
  • A. Escorza, H. Boffin, +6 authors D. Pourbaix
  • Published 2017
  • Physics
  • Astronomy and Astrophysics
  • With the availability of parallaxes provided by the Tycho-Gaia Astrometric Solution, it is possible to construct the Hertzsprung-Russell diagram (HRD) of barium and related stars with unprecedented accuracy. A direct result from the derived HRD is that subgiant CH stars occupy the same region as barium dwarfs, contrary to what their designations imply. By comparing the position of barium stars in the HRD with STAREVOL evolutionary tracks, it is possible to evaluate their masses, provided the… CONTINUE READING
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