[en] 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.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Rauw, Grégor ; Institut d'Astrophysique & Géophysique, University of Liège, Allée du 6 Août 17, B-4000, Liège, Belgium
Morel, Thierry ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)
Language :
English
Title :
The mysterious high-latitude O-star HD 93521: new results from XMM-Newton observations
Publication date :
01 July 2011
Event name :
IAUS272: Active OB Stars: Structure, Evolution, Mass Loss and Critical Limits
Event place :
Paris, France
Event date :
July 2010
Audience :
International
Journal title :
Proceedings of the International Astronomical Union
ISSN :
1743-9213
eISSN :
1743-9221
Publisher :
Cambridge University Press, Cambridge, United Kingdom
