Reference : The driving mechanism of roAp stars : effects of global metallicity

	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/76349

Title :	The driving mechanism of roAp stars : effects of global metallicity
Language :	English
Author, co-author :	Theado, S. [> > > >]
	Dupret, Marc-Antoine [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique >]
	Noels-Grötsch, Arlette [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
Publication date :	1-Dec-2008
Journal title :	Communications in Asteroseismology
Volume :	157
Pages :	375-376
Audience :	International
Abstract :	[en] We have investigated the influence of global metallicity on the excitation mechanism of roAp star pulsations. Our computations show that the opacity in the driving region of the roAp modes is strongly sensitive to the metal content but surprisingly the roAp theoretical instability strip is only weakly affected by metallicity changes.
Permalink :	http://hdl.handle.net/2268/76349
Other URL :	http://adsabs.harvard.edu/abs/2008CoAst.157..375T

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