Hostname: page-component-84b7d79bbc-7nlkj Total loading time: 0 Render date: 2024-07-26T02:26:38.632Z Has data issue: false hasContentIssue false
  • English
  • Français

Quantitative spectroscopic analyses in the IACOB+OWN project: Massive O-type stars in the Galaxy with the current Gaia information

Published online by Cambridge University Press:  28 July 2017

Gonzalo Holgado ,
Sergio Simón-Díaz  and
Rodolfo Barbá
Gonzalo Holgado
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain. Departamento de Astrofísica, Universidad de La Laguna, E-38205 La Laguna, Tenerife, Spain.
Sergio Simón-Díaz
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain. Departamento de Astrofísica, Universidad de La Laguna, E-38205 La Laguna, Tenerife, Spain.
Rodolfo Barbá
Affiliation:
Departamento de Física y Astronomía, Univ. de la Serena, Av. Juan Cisternas 1200 Norte, La Serena, Chile
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present the results from the quantitative spectroscopic analysis of ~280 likely single O stars targeted by the IACOB and OWN surveys. This implies the largest sample of Galactic O-type stars analyzed homogeneously to date. We used the iacob-broad and iacob-gbat tools (see Simón-Díaz et al. 2011,2015) to obtain the complete set of spectroscopic parameters which can be determined from the optical spectrum of O-type stars: projected rotational velocity (v sin i), macroturbulence velocity (vmac), effective temperature (Teff), gravity (logg), wind-strength (logQ), helium abundance (YHe), microturbulence (ξt), and the exponent of the wind-law (β).

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S329: The Lives and Death-Throes of Massive Stars , November 2016 , pp. 407
Copyright
Copyright © International Astronomical Union 2017 

References

Simón-Díaz, S., Castro, N., Garcia, M., Herrero, A., & Markova, N., 2011d, Bulletin de la Societe Royale des Sciences de Liege, 80, 514 Google Scholar
Simón-Díaz, S., Negueruela, I., Maíz Apellániz, J., et al. 2015, Highlights of Spanish Astrophysics VIII, 576Google Scholar
Holgado, G., Simón-Díaz, S., & Barbá, R. H. 2016, arXiv:1611.02634Google Scholar