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Frequency Oscillations in the Delta Scuti Star V534 Tauri: Preliminary Results of the STEPHI IX Campaign

Published online by Cambridge University Press:  12 April 2016

L. Fox Machado ,
Z. P. Li ,
E. Michel ,
M. Alvarez ,
M. M. Hernández ,
M. Chevreton ,
A. Zhou ,
C. Barban ,
N. Dolez  and
J. A. Belmonte
...Show all authors
L. Fox Machado
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
Z. P. Li
Affiliation:
Beijing Observatory, Chinese Academy of Sciences, Beijing, P.R. China
E. Michel
Affiliation:
Observatoire de Paris, DASGAL, URA CNRS 335, F-92195 Meudon, France
M. Alvarez
Affiliation:
Instituto de Astronomía-UNAM, Ap.P. 877, Ensenada, BC, México
M. M. Hernández
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
M. Chevreton
Affiliation:
Observatoire de Paris, DAEC, F-92195 Meudon, France
A. Zhou
Affiliation:
Beijing Observatory, Chinese Academy of Sciences, Beijing, P.R. China
C. Barban
Affiliation:
Observatoire de Paris, DASGAL, URA CNRS 335, F-92195 Meudon, France
N. Dolez
Affiliation:
Observatoire Midi-Ayrénées, F-31400 Toulouse, France
J. A. Belmonte
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
A. Fernández
Affiliation:
Observatoire de Paris, DAEC, F-92195 Meudon, France
J. Fremy
Affiliation:
Observatoire de Paris, DAEC, F-92195 Meudon, France
S. Pau
Affiliation:
Observatoire de Paris, DAEC, F-92195 Meudon, France
B. Servan
Affiliation:
Observatoire de Paris, DASGAL, URA CNRS 335, F-92195 Meudon, France
F. Pérez Hernández
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
Y. Y. Liu
Affiliation:
Beijing Observatory, Chinese Academy of Sciences, Beijing, P.R. China
J. N. Fu
Affiliation:
Observatoire Midi-Ayrénées, F-31400 Toulouse, France
O. Ringot
Affiliation:
Observatoire de Paris, DASGAL, URA CNRS 335, F-92195 Meudon, France

Extract

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The δ Scuti stars are pulsating variables located in the lower part of the Cepheid instability strip with spectral types from A2 to F0 on the main sequence, and from A3 to F5 at luminosity class III. These variables show short periods (< 0.3day) and luminosity amplitudes ranging from a few thousandths of a magnitude to several tenths. Over the last few years, significant progress has been made in the detection of pulsating modes in the framework of the multisite campaigns, e.g. STACC (Frandsen et al. 1996), DSN (Breger et al. 1998), STEPHI (Michel et al. 2000). For the 1998 STEPHI IX photometry campaign, the δ Scuti star V534 Tau of the Pleiades cluster (see Table 1) was monitored during a three week, three continent run. Preliminary results are reported here.

Type
Part 6. Variables Close to the Main Sequence
Information
International Astronomical Union Colloquium , Volume 176: The Impact of Large-Scale Surveys on Pulsating Star Research , 2000 , pp. 477 - 478
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

Alvarez, M., Hernández, M. M., Michel, E., et al. 1998, A&A, 340, 149 Google Scholar
Breger, M., Zima, W., Handler, G., et al. 1998, A&A, 331, 271 Google Scholar
Frandsen, S, Balona, L. A., Viskum, M., et al. 1996, A&A, 308, 132 Google Scholar
Hernández, M. M., Michel, E., Belmonte, J.A., et al. 1998, A&A, 337, 198 Google Scholar
Michel, E., Chevreton, M., Belmonte, J.A., et al. 2000, in these proceedings, p. 483 Google Scholar