Reference : Optical variability of the B-type star HD 105382: Pulsation or rotation?
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/132481
Optical variability of the B-type star HD 105382: Pulsation or rotation?
English
Briquet, Maryline mailto [KULeuven > Instituut voor Sterrenkunde > > >]
Aerts, C. [Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, 3001 Heverlee, Belgium]
De Cat, P. [Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, 3001 Heverlee, Belgium]
1-Jan-2001
Astronomy and Astrophysics
EDP Sciences
121-128
Yes (verified by ORBi)
0004-6361
1432-0746
Les Ulis
France
[en] STARS: EARLY-TYPE ; STARS: VARIABLES: GENERAL ; STARS: OSCILLATIONS ; STARS: INDIVIDUAL: HD 105382
[en] We present ground-based multi-colour Geneva photometry and high-resolution high S/N spectra of the variable B-type star HD 105382. We provide evidence that this star is not a Be star, as indicated in the literature. The monoperiodic variability found in the Hipparcos data is confirmed in our ground-based follow-up observations. All existing data give rise to the detection of the period of 1.295 days. We try to interpret the variability of the star in terms of a non-radial g-mode pulsation model and of a rotational modulation model. None of these two is able to explain the observed line-profile variations in full detail. Based on observations obtained with the Swiss photometric telescope and ESO's CAT/CES telescope, both situated at La Silla, Chile.
http://hdl.handle.net/2268/132481
10.1051/0004-6361:20000193
http://esoads.eso.org/abs/2001A%26A...366..121B

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