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

Published online by Cambridge University Press:  18 February 2014

S. Saesen ,
M. Briquet ,
C. Aerts ,
A. Miglio  and
F. Carrier
S. Saesen
Affiliation:
Observatoire de Genève, Université de Genève, Switzerland email: sophie.saesen@unige.ch Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Belgium
M. Briquet
Affiliation:
Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Belgium Institut d'Astrophysique et de Géophysique de l'Université de Liège, Belgium
C. Aerts
Affiliation:
Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Belgium Department of Astrophysics, Radboud University Nijmegen, The Netherlands
A. Miglio
Affiliation:
School of Physics and Astronomy, University of Birmingham, UK
F. Carrier
Affiliation:
Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Belgium
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Abstract

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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.

Keywords

open cluster and associations: individual (NGC 884)stars: early-typestars: oscillationstechniques: photometric
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S301: Precision Asteroseismology , August 2013 , pp. 479 - 480
Copyright
Copyright © International Astronomical Union 2014 

References

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