Reference : Revised instability domains of SPB and beta Cephei stars

	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/75430

Title :	Revised instability domains of SPB and beta Cephei stars
Language :	English
Author, co-author :	Miglio, Andrea [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA) >]
	Montalban Iglesias, Josefa [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie >]
	Dupret, Marc-Antoine [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique >]
Publication date :	1-Aug-2007
Journal title :	Communications in Asteroseismology
Volume :	151
Pages :	48-56
Audience :	International
Abstract :	[en] The excitation of pulsation modes in beta Cephei and Slowly Pulsating B stars is known to be very sensitive to opacity changes in the stellar interior where T Ë 2 × 10[SUP]5[/SUP] K. In this region differences in opacity up to Ë 50% can be induced by the choice between OPAL and OP opacity tables, and between two different metal mixtures (Grevesse & Noels 1993 and Asplund et al. 2005). We have extended the non-adiabatic computations presented in Miglio et al. (2007) towards models of higher mass and pulsation modes of degree l = 3, and we present here the instability domains in the HR- and log P-log Teff diagrams resulting from different choices of opacity tables, and for three different metallicities.
Permalink :	http://hdl.handle.net/2268/75430
DOI :	10.1553/cia151s48
Other URL :	http://adsabs.harvard.edu/abs/2007CoAst.151...48M
Commentary :	http://de.arxiv.org/abs/0706.3632

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	Fulltext file(s): File Commentary Version Size Access Open access CoAst151-6.pdf No commentary Publisher postprint 570.85 kB View/Open

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