Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-24T09:53:49.406Z Has data issue: false hasContentIssue false
  • English
  • Français

Abundances of C, N and O as probes of mixing in low-mass helium-core burning stars

Published online by Cambridge University Press:  01 August 2006

G. Tautvaišienė ,
B. Edvardsson ,
E. Puzeras  and
I. Ilyin
G. Tautvaišienė
Affiliation:
Institute of Theoretical Physics and Astronomy of Vilnius University, Gostauto 12, 01108 Vilnius, Lithuania email: [email protected]
B. Edvardsson
Affiliation:
Department of Astronomy and Space Physics, Uppsala Observatory, Box 515, 751 20 Uppsala, Sweden email: [email protected]
E. Puzeras
Affiliation:
Institute of Theoretical Physics and Astronomy of Vilnius University, Gostauto 12, 01108 Vilnius, Lithuania email: [email protected]
I. Ilyin
Affiliation:
Astrophysical Institute Potsdam, An der Sternwarte 16, 14482 Potsdam, Germany email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

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.

A large population of helium-core-burning clump stars of the Galactic field, revealed by the Hipparcos orbiting observatory, is an excellent target for the analysis of mixing processes in evolved low-mass metal-abundant stars. In this contribution we overview first result of 12C, 13C, N and O abundance determinations in our extensive project which we started with the aim at deriving the fundamental parameters and abundances of more than 20 chemical elements in a large sample of Galactic clump stars.

Keywords

Stars: abundancesstars: horizontal-branch
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S239: Convection in Astrophysics , August 2006 , pp. 301 - 303
Copyright
Copyright © International Astronomical Union 2007

References

Alonso, A., Arribas, S. & Martínez-Roger, C. 1999, A&AS, 140, 261Google Scholar
Alonso, A., Arribas, S. & Martínez-Roger, C. 2001, A&A, 376, 1039Google Scholar
Boothroyd, A. I. & Sackmann, I.-J. 1999, ApJ, 510, 232CrossRefGoogle Scholar
Edvardsson, B., Andersen, J., Gustafsson, B., Lambert, D.L., Nissen, P.E., & Tomkin, J. 1993, A&A, 275, 101Google Scholar
Gustafsson, B., Karlsson, T., Olsson, E., Edvardsson, B., & Ryde, N. 1999, A&A, 342, 426Google Scholar
McWilliam, A. 1990, ApJS, 74, 1075CrossRefGoogle Scholar
McWilliam, A. & Rich, R. M. 1997, ApJS, 91, 749CrossRefGoogle Scholar
Perryman, M.A.C. 1997, ESA SP, 404, 231Google Scholar
Tautvaišiene, G., Stasiukaitis, E., Puzeras, E., Gray, D. F., & Ilyin, I. 2005a, ESA SP, eds. Favata, F., Hussain, G., & Battrick, B., 560, 989Google Scholar
Tautvaišiene, G., Edvardsson, B., Puzeras, E., & Ilyin, I. 2005b, A&A, 431, 933Google Scholar
Zhao, G., Qiu, H.M., & Mao, S. 2001, ApJ, 551, L85CrossRefGoogle Scholar