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P-Mode Observations on α Cen A with CORALIE

Published online by Cambridge University Press:  12 April 2016

F. Carrier ,
F. Bouchy ,
G. Meynet ,
A. Maeder ,
J. Provost ,
G. Berthomieu ,
P. Morel  and
F. Thévenin
F. Carrier
Affiliation:
Observatoire de Genève, CH-1290 Sauverny, Switzerland
F. Bouchy
Affiliation:
Observatoire de Genève, CH-1290 Sauverny, Switzerland
G. Meynet
Affiliation:
Observatoire de Genève, CH-1290 Sauverny, Switzerland
A. Maeder
Affiliation:
Observatoire de Genève, CH-1290 Sauverny, Switzerland
J. Provost
Affiliation:
Département Cassini, UMR CNRS 6529, Observatoire de la Côte d’Azur, BP 4229, 06304 Nice CEDEX 4, France
G. Berthomieu
Affiliation:
Département Cassini, UMR CNRS 6529, Observatoire de la Côte d’Azur, BP 4229, 06304 Nice CEDEX 4, France
P. Morel
Affiliation:
Département Cassini, UMR CNRS 6529, Observatoire de la Côte d’Azur, BP 4229, 06304 Nice CEDEX 4, France
F. Thévenin
Affiliation:
Département Cassini, UMR CNRS 6529, Observatoire de la Côte d’Azur, BP 4229, 06304 Nice CEDEX 4, France

Abstract

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We have made a clear detection of p-mode oscillations in the G2V star α Cen A with the CORALIE spectrograph. The power spectrum clearly shows several identifiable peaks between 1.8 and 2.9 mHz. A preliminary astrophysical interpretation of these p-modes is presented.

Type
Part 4. The Interaction between Convection and Pulsation
Information
International Astronomical Union Colloquium , Volume 185: Radial and Nonradial Pulsations as Probes of Stellar Physics , 2002 , pp. 460 - 463
Copyright
Copyright © Astronomical Society of the Pacific 2002

References

Bouchy, F. & Carrier, F., 2001, A&A, 374, L5 Google Scholar
Morel, P., Provost, J., Lebreton, Y., et al. 2000, A&A, 363, 675 Google Scholar