Reference : Evidence for line-profile variability in the spectrum of the O supergiant HD 152249: pre...

	Document type :	Scientific congresses and symposiums : Paper published in a journal
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/22348

Title :	Evidence for line-profile variability in the spectrum of the O supergiant HD 152249: preliminary results
Language :	English
Author, co-author :	Gosset, Eric [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE) >]
	Sana, H. [> > > >]
	Linder, N. [> > > >]
	Rauw, Grégor [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE) - Sciences spatiales >]
Publication date :	1-Jul-2009
Journal title :	Communications in Asteroseismology
Volume :	158
Pages :	202
On invitation :	No
Audience :	International
Abstract :	[en] Already suspected to be variable, the O9Ib((f)) supergiant HD 152249 has been the subject of a dedicated follow-up spectroscopic run. We report here on the preliminary results. This star is definitely exhibiting significant line-profile variations which are most probably a sign of the existence of non-radial pulsations. HD 152249 could thus belong to the newly identified group of pulsating OB supergiants.
Permalink :	http://hdl.handle.net/2268/22348
Other URL :	http://adsabs.harvard.edu/abs/2009CoAst.158..202G

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