Hostname: page-component-848d4c4894-pjpqr Total loading time: 0 Render date: 2024-06-27T19:09:03.006Z Has data issue: false hasContentIssue false
  • English
  • Français

η Carinae long-term variability

Published online by Cambridge University Press:  12 July 2011

Augusto Damineli ,
Mairan Teodoro ,
Michael F. Corcoran  and
Jose H. Groh
Augusto Damineli
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Rua do Matão 1226, São Paulo, 05508-900, Brazil email: damineli@astro.iag.usp.br
Mairan Teodoro
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Rua do Matão 1226, São Paulo, 05508-900, Brazil email: damineli@astro.iag.usp.br
Michael F. Corcoran
Affiliation:
NASA/GSFC, Code 662, X-ray Astrophysics, Greenbelt, MD 20771, USA
Jose H. Groh
Affiliation:
Max-Planck-Institute für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany
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.

We present preliminary results of our analysis on the long-term variations observed in the optical spectrum of the LBV star η Carinae. Based on the hydrogen line profiles, we conclude that the physical parameters of the primary star did not change in the last 15 years.

Keywords

stars: individual (η Carinae)stars: variables: otherstars: emission-line
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S272: Active OB stars: structure, evolution, mass loss, and critical limits , July 2010 , pp. 604 - 605
Copyright
Copyright © International Astronomical Union 2011

References

Feinstein, A. 1967, Observatory, 87, 287Google Scholar
Feinstein, A. & Marraco, H. G. 1974, A&A, 30, 271Google Scholar
Fernández-Lajús, E., Fariña, C., Torres, A. F., Schwartz, M. A. et al. 2009, A&A, 493, 1093Google Scholar
Frew, D. J. 2004, Journal of Astronomical Data, 10, 6Google Scholar
Sterken, C., Freyhammer, L., Arentoft, T., & van Genderen, A. M. 1999, A&A, 346, L33Google Scholar
Sterken, C., de Groot, M. J. H., & van Genderen, A. M. 1996, A&AS, 116, 9Google Scholar
van Genderen, A. M., Sterken, C., Allen, W. H., & Walker, W. S. G. 2006, Journal of Astronomical Data, 12, 3Google Scholar