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The rich frequency spectrum of the triple-mode variable AC And

Published online by Cambridge University Press:  18 February 2014

Géza Kovács ,
Gáspár A. Bakos  and
Joel D. Hartman
Géza Kovács
Affiliation:
Dept. of Physics & Astrophysics, U. North Dakota, Grand Forks, ND Konkoly Obs., Budapest, Hungary
Gáspár A. Bakos
Affiliation:
Princeton University, Department of Astrophysical Sciences, Princeton
Joel D. Hartman
Affiliation:
Princeton University, Department of Astrophysical Sciences, Princeton
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Abstract

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Fourier analysis of the light curve of AC And from the HATNet database reveals the rich frequency structure of this object. Above 30 components are found down to the amplitude of 3 mmag. Several of these frequencies are not the linear combinations of the three basic components. We detect period increase in all three components that may lend support to the Population I classification of this variable.

Keywords

stars: variablesCepheidsfundamental parameters
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S301: Precision Asteroseismology , August 2013 , pp. 443 - 444
Copyright
Copyright © International Astronomical Union 2014 

References

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