Solar-Like Oscillations in a Massive Star

[en] Seismology of stars provides insight into the physical mechanisms taking place in their interior, with modes of oscillation probing different layers. Low-amplitude acoustic oscillations excited by turbulent convection were detected four decades ago in the Sun and more recently in low-mass main-sequence stars. Using data gathered by the Convection Rotation and Planetary Transits mission, we report here on the detection of solar-like oscillations in a massive star, V1449 Aql, which is a known large-amplitude (beta Cephei) pulsator.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Belkacem, Kevin ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie

Samadi, Réza; LESIA - Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique

Goupil, Marie-Jo; LESIA - Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique

Lefèvre, Laure; LESIA - Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique

Baudin, Frédéric; Université Paris-Sud 11

Deheuvels, Sébastien; Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, CNRS (UMR 8109), Observatoire de Paris, Place J. Janssen, F- 92195 Meudon, France ; associated with Université Pierre et Marie Curie and Université Denis Diderot.

Dupret, Marc-Antoine ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie

Appourchaux, T.; Institut d'Astrophysique Spatiale, Université Paris-Sud 11 and CNRS (UMR 8617), Batiment 121, F-91405 Orsay, France.

Scuflaire, Richard ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie

Auvergne, M.; Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, CNRS (UMR 8109), Observatoire de Paris, Place J. Janssen, F- 92195 Meudon, France ; associated with Université Pierre et Marie Curie and Université Denis Diderot.

More authors (8 more)

Language :

English

Title :

Solar-Like Oscillations in a Massive Star

Publication date :

19 June 2009

Journal title :

Science

ISSN :

0036-8075

eISSN :

1095-9203

Publisher :

American Association for the Advancement of Science, Washington, United States - District of Columbia

Volume :

324

Pages :

1540-1542

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://adsabs.harvard.edu/abs/2009Sci...324.1540B

Commentary :

http://de.arxiv.org/abs/0906.3788

Available on ORBi :

since 22 November 2010

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Bibliography

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K.B. acknowledges financial support from Liège University through the Subside Fédéral pour la Recherche. Part of this research was funded by the Belgian Prodex-ESA. L.L. has been partly supported by CNES. A.T. is Chercheur Qualifié at the Fonds National de la Recherche Scientifique (FNRS) and A.M. is Chargé de recherches FNRS.

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