Hostname: page-component-5c6d5d7d68-wp2c8 Total loading time: 0 Render date: 2024-08-29T15:17:37.918Z Has data issue: false hasContentIssue false
  • English
  • Français

Slowly-rotating nitrogen-rich O stars in 30 Doradus

Published online by Cambridge University Press:  29 August 2024

F. Tramper Open the ORCID record for F. Tramper [Opens in a new window]
F. Tramper*
Affiliation:
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
*
email: frank.tramper@kuleuven.be
Get access Rights & Permissions [Opens in a new window]

Abstract

The VLT/FLAMES Tarantula Survey (Evans et al. 2011) identified a group of slowly-rotating nitrogen-rich O-type stars that cannot be explained by current evolutionary models. Here we present high-quality VLT/UVES observations of four of these stars that allow a detailed quantitative spectroscopic analysis. We present the analysis of the spectra with a genetic algorithm, and discuss the future steps to be taken to further investigate the cause of the nitrogen enrichment.

Keywords

stars: abundancesstars: atmospheresstars: chemically peculiarstars: early-typestars: evolutionstars: fundamental parameters
Type
Poster Paper
Information
Proceedings of the International Astronomical Union , Volume 18 , Symposium S361: Massive Stars Near and Far , May 2022 , pp. 256 - 258
Check for updates
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Brott, I., de Mink, S. E., Cantiello, M., et al. 2011, A&A, 530, A115 Google Scholar
Evans, C. J., Lennon, D. J., Smartt, S. J., et al. 2006, A&A, 456, 623 Google Scholar
Evans, C. J., Taylor, W. D., Hénault-Brunet, V., et al. 2011, A&A, 530, A108 Google Scholar
Grin, N. J., Ramrez-Agudelo, O. H., de Koter, A., et al. 2017, A&A, 600, A82 Google Scholar
Hunter, I., Brott, I., Lennon, D. J., et al. 2008, ApJ (Letters), 676, L29 Google Scholar
Mokiem, M. R., de Koter, A., Puls, J., et al. 2005, A&A, 441, 711 Google Scholar
Puls, J., Urbaneja, M. A., Venero, R., et al. 2005, A&A, 435, 669 Google Scholar
Tramper, F., Sana, H., de Koter, A., et al. 2011, ApJ (Letters), 741, L8Google Scholar
Tramper, F., Sana, H., de Koter, A., et al. 2014, A&A, 572, A36 Google Scholar
Supplementary material: PDF

Tramper supplementary material

Tramper supplementary material

Download Tramper supplementary material(PDF)
PDF 2.4 MB