Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-19T05:39:39.943Z Has data issue: false hasContentIssue false
  • English
  • Français

The mysterious high-latitude O-star HD 93521: new results from XMM-Newton observations

Published online by Cambridge University Press:  12 July 2011

Gregor Rauw  and
Thierry Morel
Gregor Rauw
Affiliation:
Institut d'Astrophysique & Géophysique, University of Liège, Allée du 6 Août 17, B-4000, Liège, Belgium email: [email protected]
Thierry Morel
Affiliation:
Institut d'Astrophysique & Géophysique, University of Liège, Allée du 6 Août 17, B-4000, Liège, Belgium 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.

The O9.5 Vp star HD 93521 is a well known non-radial pulsator located at a high Galactic latitude. The nature (Population I vs. II) of this star has been the subject of controversy for many years. We report on an XMM-Newton observation of the star that sheds new light on its nature.

Keywords

stars: early-typestars: individual (HD 93521)X-rays: stars
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. 612 - 613
Copyright
Copyright © International Astronomical Union 2011

References

Bohlin, R. C., Savage, B. D., & Drake, J. F. 1978, ApJ, 224, 132CrossRefGoogle Scholar
Ebbets, D. C. & Savage, B. D. 1982, ApJ, 262, 234CrossRefGoogle Scholar
Howarth, I. D., Siebert, K. W., Hussain, G. A. J., & Prinja, R. K. 1997, MNRAS, 284, 265CrossRefGoogle Scholar
Irvine, N. J. 1989, ApJ (Letters), 337, L33CrossRefGoogle Scholar
Lennon, D. J., Dufton, P. L., Keenan, F. P., & Holmgren, D. E. 1991, A&A, 246, 175Google Scholar
Nazé, Y. 2009, A&A, 506, 1055Google Scholar
Rauw, G., De Becker, M., van Winckel, H., Aerts, C. et al. 2008, A&A, 487, 659Google Scholar