ORBi: Dupret Marc-Antoine - Time-dependent convection seismic study of delta Sct stars

Reference : Time-dependent convection seismic study of delta Sct 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/2268/75424

Title :	Time-dependent convection seismic study of delta Sct stars
Language :	English
Author, co-author :	Dupret, Marc-Antoine [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique >]
	Grigahcène, A. [Instituto de Astrofísica de Andalucía-CSIC, Apartado 3004, 18080 Granada, Spain]
	Garrido, R. [Instituto de Astrofísica de Andalucía-CSIC, Apartado 3004, 18080 Granada, Spain]
	De Ridder, J. [Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, 3001 Leuven, Belgium]
	Scuflaire, Richard [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA) >]
	Gabriel, Maurice [> > Département d'astrophys., géophysique et océanographie (AGO) >]
Publication date :	1-Aug-2005
Journal title :	Monthly Notices of the Royal Astronomical Society
Publisher :	Blackwell Publishing
Volume :	361
Pages :	476-486
Peer reviewed :	Yes (verified by ORBi)
Audience :	International
ISSN :	0035-8711
City :	Oxford
Country :	United Kingdom
Keywords :	[en] convection ; stars: interiors ; stars: oscillations ; delta Scuti
Abstract :	[en] We apply for the first time the time-dependent convection (TDC) treatment of Gabriel and Grigahcène et al. to the mode identification and seismic study of delta Sct stars. We consider the influence of this treatment on the photometric amplitude ratios and phase differences, and compare our TDC results to frozen convection (FC) results. We also compare the results obtained with different values of the mixing-length (ML) parameter alpha. Finally, we identify the modes and perform a seismic study of the stars V784 Cassiopeae (Cas), 1 Monocerotis (Mon) and 28 Andromedae (And), and show that our TDC models agree better with observations than FC models.
Permalink :	http://hdl.handle.net/2268/75424
DOI :	10.1111/j.1365-2966.2005.09187.x
Other URL :	http://adsabs.harvard.edu/abs/2005MNRAS.361..476D

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