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Detection of Sectoral Modes in the Eclipsing Binary KIC 4851217

Published online by Cambridge University Press:  29 August 2019

M. Fedurco ,
Š. Parimucha  and
P. Gajdoš
M. Fedurco
Affiliation:
Institute of Physics, Faculty of Natural Sciences, Šafárik University, Košice, Slovakia email: miroslav.fedurco@student.upjs.sk
Š. Parimucha
Affiliation:
Institute of Physics, Faculty of Natural Sciences, Šafárik University, Košice, Slovakia email: miroslav.fedurco@student.upjs.sk
P. Gajdoš
Affiliation:
Institute of Physics, Faculty of Natural Sciences, Šafárik University, Košice, Slovakia email: miroslav.fedurco@student.upjs.sk
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Abstract

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KIC 4851217 is a short period eclipsing binary (P = 2.47 days) in the field of the Kepler K1 mission. As well as variability caused by the eclipses, low-amplitude pulsations are also present in the data. A frequency analysis of the residual light-curve revealed δ Sct pulsations in the frequency range from 15–21 d−1 with amplitudes up to 3.5 mmag. Strong linear coupling (fi = fp + kforb) to orbital frequency was found, indicating tidally locked modes. From an analysis of 5 selected groups of frequencies we identified a radial mode on the secondary component, 3 dipole modes (l = |m| = 1), one of them present on the secondary component, and a quadrupole mode (l = |m| = 2), also located on the secondary component.

Keywords

Stars: binaries: eclipsingstars: variablesstars: pulsations
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S339: Southern Horizons in Time-Domain Astronomy , November 2017 , pp. 295 - 298
Copyright
© International Astronomical Union 2019 

References

Borucki, W. J., Koch, D., Basri, G., et al. 2011, ApJ, 736, 1CrossRefGoogle Scholar
Mikulášek, Z. 2015, A&A, 584, A8Google Scholar
Prša, A., Batalha, N. Slawson, R. W., et al. 2011, AJ, 141, 3CrossRefGoogle Scholar
Slawson, R., Prša, A., Welsh, W. F., et al. 2011, AJ, 142, 5CrossRefGoogle Scholar
Zechmeister, M., Kürster, M. 2009, A&A, 496, 577Google Scholar