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An observational asteroseismic study of the pulsating B-type stars in the open cluster NGC 884

Saesen, S. ; Briquet, M. ; Aerts, C. ; Miglio, A. ; Carrier, F.

In: Proceedings of the International Astronomical Union, 2013, vol. 9, no. S301, p. 479-480

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    Title
    • An observational asteroseismic study of the pulsating B-type stars in the open cluster NGC 884
    Author
    • Saesen, S.. Observatoire de Genève, Université de Genève, Switzerland email: sophie.saesen@unige.ch
    • Briquet, M.. Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Belgium
    • Aerts, C.. Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Belgium
    • Miglio, A.. School of Physics and Astronomy, University of Birmingham, UK
    • Carrier, F.. Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Belgium
    Document Type
    • Postprint
    Language
    • English
    Published in
    • Proceedings of the International Astronomical Union, 2013, vol. 9, no. S301, p. 479-480. Cambridge University Press
    Other Version
    OAI-PMH Identifier
    • oai:doc.rero.ch:296201
    Summary
    Recent progress in the seismic interpretation of field β Cep stars has resulted in improvements of the physical description in the stellar structure and evolution model computations of massive stars. Further asteroseismic constraints can be obtained from studying ensembles of stars in a young open cluster, which all have similar age, distance and chemical composition. We present an observational asteroseismic study based on the discovery of numerous multi-periodic and mono-periodic B-type stars in the open cluster NGC 884 (χ Persei). Our study illustrates the current status of ensemble asteroseismology of this young open cluster