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HD 182786


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A photometric study of Be stars located in the seismology fields of COROT
Context: In preparation for the COROT mission, an exhaustive photometricstudy of Be stars located in the seismology fields of the mission hasbeen performed. The very precise and long-time-spanned photometricobservations gathered by the COROT satellite will give important clueson the origin of the Be phenomenon. Aims: The aim of this work is tofind short-period variable Be stars located in the seismology fields ofCOROT, 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 appliedstandard Fourier techniques and non-linear least-square fitting to thetime series. Results: We found 7 multiperiodic, 21 mono-periodic and 26non-variable Be stars. Short-term variability was detected in 74% ofearly-type Be stars and in 31% of mid- to late-type Be stars. We showthat non-radial pulsations are more frequent among Be stars than inslow-rotating B stars of the same spectral range.Appendix A is only available in electronic form at http://www.aanda.org

Broad-band photometry of selected southern ultraviolet-bright stars.
Not Available

Early-type stars detected on UK Schmidt objective-prism plates - III. UKST area 881.
Not Available

The Kreinin-Murri Method for Absolute Determination of Equatorial-Star Declinations.
Not Available

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Osservazione e dati astrometrici

Costellazione:Aquila
Ascensione retta:19h26m17.76s
Declinazione:-00°05'58.0"
Magnitudine apparente:7.969
Distanza:763.359 parsec
Moto proprio RA:1.2
Moto proprio Dec:-3.4
B-T magnitude:8.029
V-T magnitude:7.974

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 182786
TYCHO-2 2000TYC 5131-745-1
USNO-A2.0USNO-A2 0825-15790465
HIPHIP 95562
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