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Article

Asteroseismic Analysis of δ Scuti Components of Binary Systems: The Case of KIC 8504570

1
Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing, National Observatory of Athens, Metaxa & Vas. Pavlou St., Penteli, 15236 Athens, Greece
2
Section of Astrophysics, Astronomy and Mechanics, Department of Physics, National and Kapodistrian University of Athens, Zografos, 15784 Athens, Greece
*
Author to whom correspondence should be addressed.
Galaxies 2020, 8(4), 75; https://doi.org/10.3390/galaxies8040075
Received: 22 September 2020 / Revised: 15 October 2020 / Accepted: 20 October 2020 / Published: 28 October 2020
The present work concerns the Asteroseismology of the Kepler-detached eclipsing binary KIC 8504570. Particularly, it focuses on the pulsational behaviour of the oscillating component of this system and the estimation of its physical parameters in order to enrich the so far poor sample of systems of this kind. Using spectroscopic observations, the spectral type of the primary component was determined and used to create accurate light curve models and estimate its absolute parameters. The light curve residuals were subsequently analysed using Fourier transformation techniques to obtain the pulsation models. Theoretical models of δ Scuti stars were employed to identify the oscillation modes of the six detected independent frequencies of the pulsator. In addition, more than 385 combination frequencies were also detected. The absolute and the pulsational properties of the δ Scuti star of this system are discussed and compared with all the currently known similar cases. Moreover, using a recent(empirical) luminosity–pulsation period relationship for δ Scuti stars, the distance of the system was estimated. View Full-Text
Keywords: stars binaries; eclipsing; fundamental parameters; binaries; close oscillations; delta Scuti; oscillations; individual; KIC 8504570 stars binaries; eclipsing; fundamental parameters; binaries; close oscillations; delta Scuti; oscillations; individual; KIC 8504570
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MDPI and ACS Style

Liakos, A.; Niarchos, P. Asteroseismic Analysis of δ Scuti Components of Binary Systems: The Case of KIC 8504570. Galaxies 2020, 8, 75. https://doi.org/10.3390/galaxies8040075

AMA Style

Liakos A, Niarchos P. Asteroseismic Analysis of δ Scuti Components of Binary Systems: The Case of KIC 8504570. Galaxies. 2020; 8(4):75. https://doi.org/10.3390/galaxies8040075

Chicago/Turabian Style

Liakos, Alexios, and Panagiotis Niarchos. 2020. "Asteroseismic Analysis of δ Scuti Components of Binary Systems: The Case of KIC 8504570" Galaxies 8, no. 4: 75. https://doi.org/10.3390/galaxies8040075

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