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The largest and most ambitious quantitative spectroscopic analysis of B-type supergiants in the Milky Way

Published online by Cambridge University Press:  29 August 2024

Abel de Burgos Open the ORCID record for Abel de Burgos [Opens in a new window] ,
Sergio Simon-Díaz  and
Miguel A. Urbaneja
Abel de Burgos*
Affiliation:
Universidad de La Laguna, Dpto. Astrofísica, E-38206 La Laguna, Tenerife, Spain Instituto de Astrofísica de Canarias, Avenida Vía Láctea, E-38205 La Laguna, Tenerife, Spain
Sergio Simon-Díaz
Affiliation:
Universidad de La Laguna, Dpto. Astrofísica, E-38206 La Laguna, Tenerife, Spain Instituto de Astrofísica de Canarias, Avenida Vía Láctea, E-38205 La Laguna, Tenerife, Spain
Miguel A. Urbaneja
Affiliation:
Institut für Astro- und Teilchenphysik, Universität Innsbruck, Technikerstr. 25/8, A-6020 Innsbruck, Austria
*
email: astroabelink@gmail.com
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Abstract

Empirical constraints are master keys for testing theoretical evolutionary model predictions. In massive stars, the region in the Hertzsprung-Russell diagram (HRD) in which the Blue Supergiants (BSGs) are located sets several important constraints to the models, and in particular to the theoretical end of the main sequence (MS). So far, we are missing from a full quantitative spectroscopic analysis (QSA) of a sample of BSGs large enough to be statistically significant and without observational biases. We present results from a QSA of a sample of ∼700 Galactic BSGs for which we have high-resolution multi-epoch optical spectra.

Keywords

stars: fundamentalstars: evolutionstars: rotationstars: distances
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S361: Massive Stars Near and Far , May 2022 , pp. 100 - 102
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Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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References

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