Reference : Observational results for northern and southern (candidate) gamma Doradus stars .
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/75472
Observational results for northern and southern (candidate) gamma Doradus stars .
English
De Cat, P. [Royal Observatory of Belgium, Ringlaan 3, B-1180 Brussel, Belgium; Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, B-3001 Leuven, Belgium]
Goossens, K. [Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, B-3001 Leuven, Belgium]
Bouckaert, F. [Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, B-3001 Leuven, Belgium]
Eyer, L. [Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, B-3001 Leuven, Belgium; Observatoire de Genève, CH-1290 Sauverny, Switzerland]
Cuypers, J. [Royal Observatory of Belgium, Ringlaan 3, B-1180 Brussel, Belgium]
De Ridder, J. [Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, B-3001 Leuven, Belgium]
Flanders} [CRAAG - Algiers Observatory BP 63 Bouzareah 16340, Algiers, Algeria]
Aerts, C. [Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, B-3001 Leuven, Belgium; Department of Astrophysics, University of Nijmegen, PO Box 9010, 6500 GL Nijmegen, the Netherlands]
Dupret, Marc-Antoine [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique >]
Grigahcène, A. [CRAAG - Algiers Observatory BP 63 Bouzareah 16340, Algiers, Algeria]
Many, Observers [> > > >]
2006
Memorie della Società Astronomica Italiana: Journal of the Italian Astronomical Society
77
313
No
International
0037-8720
[en] Stars: variables: general ; Stars: oscillations ; Line: profiles
[en] We report on observational results obtained for 78 objects originally classified as bona-fide or candidate gamma Doradus stars. For the southern objects, we gathered echelle spectra with the CORALIE spectrograph attached to the Euler telescope in 1998-2003 and/or Johnson-Cousins B,V,I_c observations with the MODULAR photometer attached to the 0.5-m SAAO telescope in 1999-2000. For the northern objects, we obtained Geneva U,B,B_1,B_2,V,V_1,G observations with the P7 photometer attached to the 1.2-m Mercator telescope in 2001-2004. At least 15 of our objects are binaries, of which 7 are new. For 6 binaries, we determined the orbit for the first time. At least 17 objects show profile variations and at least 12 objects are multiperiodic photometric variables. Our results allow us to upgrade 11 objects to bona-fide gamma Doradus stars and to downgrade 8 objects to constant up to the current detection limits. Mode identification is still ongoing, but so far, only l = 1 and 2 modes have been identified.
http://hdl.handle.net/2268/75472
http://adsabs.harvard.edu/abs/2006MmSAI..77..313D
http://arxiv.org/abs/astro-ph/0511208

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