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A photometric study of Be stars located in the seismology fields of COROT

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A photometric study of Be stars located in the seismology fields of COROT

dc.contributor.author	Gutiérrez Soto, Juan
dc.contributor.author	Fabregat Llueca, Juan
dc.contributor.author	Suso, J.
dc.contributor.author	Lanzara, M.
dc.contributor.author	Garrido, R.
dc.contributor.author	Hubert, A.M.
dc.date.accessioned	2010-07-30T11:06:43Z
dc.date.available	2010-07-30T11:06:43Z
dc.date.issued	2007
dc.identifier.citation	Gutiérrez-Soto, J., Fabregat, J., Suso, J., Lanzara, M., Garrido, R., Hubert, A.-M. and M. Floquet(2007): A photometric study of Be stars located in the seismology fields of COROT, Astronomy and Astrophysics, núm. 476, vol. 2, pp. 927-933	en
dc.identifier.uri	http://hdl.handle.net/10550/16744
dc.description.abstract	Context. In preparation for the COROT mission, an exhaustive photometric study of Be stars located in the seismology fields of the mission has been performed. The very precise and long-time-spanned photometric observations gathered by the COROT satellite will give important clues on the origin of the Be phenomenon. Aims. The aim of this work is to find short-period variable Be stars located in the seismology fields of COROT, and to study and characterise their pulsational properties. Methods. Light curves obtained at the Observatorio de Sierra Nevada, together with data from Hipparcos and ASAS-3 for a total of 84 Be stars, were analysed in order to search for short-term variations. We applied standard Fourier techniques and non-linear least-square fitting to the time series. Results. We found 7 multiperiodic, 21 mono-periodic and 26 non-variable Be stars. Short-term variability was detected in 74% of early-type Be stars and in 31% of mid- to late-type Be stars. We show that non-radial pulsations are more frequent among Be stars than in slow-rotating B stars of the same spectral range.	en
dc.language.iso	en	en
dc.subject	Stars : emission-line, Be; Stars : oscillations (including pulsations); Stars : statistics; Techniques : photometric	en
dc.title	A photometric study of Be stars located in the seismology fields of COROT	en
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogonia::Estrellas	en
dc.subject.unesco	UNESCO::ASTRONOMÍA Y ASTROFÍSICA::Cosmología y cosmogonia::Otras	en
dc.identifier.doi	10.1051/0004-6361:20078252	en
dc.identifier.idgrec	049048	en
dc.type.hasVersion	VoR	es_ES
dc.identifier.url	http://www.aanda.org/index.php?option=com_article&access=doi&doi=10.1051/0004-6361:20078252&Itemid=129	en