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Astron. Astrophys. Suppl. Ser.
Volume 120, Number 1, November_II 1996
Page(s) 179 - 186
Published online 15 November 1996
On the multiperiodicity of the ** Scuti star BDS 1269A (VW Arietis). The fifth campaign of STEPHI network in 1993 DOI: 10.1051/aas:1996283

Astronomy and Astrophysics Supplement Series, Vol. 120, November II 1996, 179-186

On the multiperiodicity of the Scuti star BDS 1269A (VW Arietis). The fifth campaign of STEPHI network in 1993

Y.Y. Liu , S.Y. Jiang , E. Michel , M.M. Hernández , M. Chevreton , M. Auvergne , A. Mangeney , J.A. Belmonte , M.J. Goupil , A. Baglin , T. Roca Cortés and I. Vidal
Send offprint requests to: Liu Yan-ying

Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing, China
Observatoire de Paris-Meudon, DASGAL, URA 335, F-92195 Meudon, France
Instituto de Astrofísica de Canarias, F-38200 La Laguna, Tenerife, Spain
Observatoire de Paris-Meudon, DAEC, F-92195 Meudon, France
Observatoire de Paris-Meudon, DESPA, F-92195 Meudon, France

Received August 25, 1995; accepted April 11, 1996


This paper reports on the fifth STEPHI multi-site photometric campaign in 1993 devoted to the Scuti star BDS 1269A (VW Ari). The observation yielded a data set of 150.7 hours. Our analysis has resulted in 7 identified frequencies. These frequencies exhibit three couple-frequency character, and also fit the previous investigations quite well. An attempt to identify the pulsation modes is made, but no equidistant evidence can be detected, and a second-order effect for rotational splitting has to be considered to explain the complicated nature of BDS 1269A.

Key words: star: Scuti star: variable --- star: oscillations --- star: BDS 1269A, HD 15165

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