A Comprehensive Study of the Eclipsing Binaries V1241 Tau and GQ Dra

• Autorzy: Ulaş B. , Gazeas K. , Liakos A. , Ulusoy C. , Stateva I. , Erkan N. , Napetova M. , Iliev I. K.

Identyfikatory

DOI

10.32023/0001-5237/70.3.4

• Języki publikacji: EN

Abstrakty

EN

We present new photometric and spectroscopic observations and analyses for the eclipsing binary systems V1241 Tau and GQ Dra. Our photometric light and radial velocity curve analyses combined with the TESS light curves show that both are conventional semi-detached binary systems. Their absolute parameters are also derived. We present the O-C analyses of the systems and we propose the most likely orbital period modulating mechanisms. Furthermore, Fourier analyses are applied to the photometric residual data of the systems to check for the pulsational behavior of the components. We conclude that the primary component of the system GQ Dra is a δ Sct type pulsator with a dominant pulsation frequency of 18.58 d^-1 based on our B filter residual light curve although it can not be verified by 30-minute cadence TESS data. No satisfactory evidence of pulsational behavior for V1241 Tau was verified. Finally, the evolutionary tracks of the components of both systems are calculated. Their locations within evolutionary diagrams are compared with other Algol-type systems.

Słowa kluczowe

EN

binaries: eclipsing; stars: oscillations; stars: fundamental parameters; stars: evolution; stars: individual: V1241 Tau; stars: individual: GQ Dra

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2020
• Tom: Vol. 70, No. 3
• Strony: 219--240
• Opis fizyczny: Bibliogr. 62 poz., tab., wykr.

Twórcy

autor

Ulaş B.

• Department of Space Sciences and Technologies, Faculty of Arts and Sciences, Çanakkale Onsekiz Mart University, Terzioǧlu Campus, TR-17100, Çanakkale, Turkey
• Çanakkale Onsekiz Mart University, Astrophysics Research Centre and Ulupınar Observatory, TR-17100, Çanakkale, Turkey

autor

Gazeas K.

• Section of Astrophysics, Astronomy and Mechanics, Department of Physics, National and Kapodistrian University of Athens, GR-157 84, Zografos, Athens, Greece

autor

Liakos A.

• Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing, National Observatory of Athens, GR-15236, Penteli, Athens, Greece

autor

Ulusoy C.

• Department of Physics and Astronomy, Botswana International University of Science and Technology (BIUST), Plot 10017, Private Bag 16, Palapye, Botswana

autor

Stateva I.

• Institute of Astronomy and NAO, Bulgarian Academy of Sciences, Sofia 1784, Bulgaria

autor

Erkan N.

• Department of Physics, Faculty of Arts and Sciences, Çanakkale Onsekiz Mart University, Terzioǧlu Campus, TR-17100, Çanakkale, Turkey
• Çanakkale Onsekiz Mart University, Astrophysics Research Centre and Ulupınar Observatory, TR-17100, Çanakkale, Turkey

autor

Napetova M.

• Institute of Astronomy and NAO, Bulgarian Academy of Sciences, Sofia 1784, Bulgaria

autor

Iliev I. K.

• Institute of Astronomy and NAO, Bulgarian Academy of Sciences, Sofia 1784, Bulgaria

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