Orbital Period Analysis of Four Eclipsing Binaries XY Boo, RW Com, MR Del and AK Her

• Autorzy: Özavcı İ. , Özuyar D. , Şenavcı H. V. , Yılmaz M , Bahar E. , Baştürk Ö. , Kılıçoğlu T. , Elmaslı A. , Çalışkan Ş. , İzci D. D. , Yörükoğlu O. , Selam S. O.

Identyfikatory

DOI

10.32023/0001-5237/70.1.3

• Języki publikacji: EN

Abstrakty

EN

The orbital period variations of the eclipsing binaries XY Boo, RW Com, MR Del, and AK Her are investigated. This study includes the first orbital period analysis of the detached eclipsing binary MR Del and necessary updates for the remaining stars with addition of new mid-eclipse times calculated from our recent observations carried out at Ankara University Kreiken Observatory. The analysis shows that the period variations may result from mass exchange/loss and a third body for XY Boo, two additional bodies for RW Com, a substellar third component for MR Del, and mass exchange/loss, additional bodies and/or magnetic activity for AK Her. The hypothetical third component of MR Del with an estimated mass of 0.069 M⊙, appears to be very close to the borderline between stars and brown dwarfs.

Słowa kluczowe

EN

binaries: eclipsing; stars: individual: XY Boo; stars: individual: RW Com; stars: individual: MR Del; stars: individual: AK Her

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2020
• Tom: Vol. 70, No. 1
• Strony: 33--52
• Opis fizyczny: Bibliogr. 74 poz., tab., wykr.

Twórcy

autor

Özavcı İ.

• Department of Astronomy and Space Sciences, Faculty of Science, Ankara University, Tandoğan TR-06100 Ankara, Turkey Ankara University Kreiken Observatory, TR-06873, Ahlatlıbel, Ankara, Turkey

autor

Özuyar D.

• Department of Astronomy and Space Sciences, Faculty of Science, Ankara University, Tandoğan TR-06100 Ankara, Turkey Ankara University Kreiken Observatory, TR-06873, Ahlatlıbel, Ankara, Turkey

autor

Şenavcı H. V.

• Department of Astronomy and Space Sciences, Faculty of Science, Ankara University, Tandoğan TR-06100 Ankara, Turkey Ankara University Kreiken Observatory, TR-06873, Ahlatlıbel, Ankara, Turkey

autor

Yılmaz M

• Department of Astronomy and Space Sciences, Faculty of Science, Ankara University, Tandoğan TR-06100 Ankara, Turkey Ankara University Kreiken Observatory, TR-06873, Ahlatlıbel, Ankara, Turkey

autor

Bahar E.

• Department of Astronomy and Space Sciences, Faculty of Science, Ankara University, Tandoğan TR-06100 Ankara, Turkey Ankara University Kreiken Observatory, TR-06873, Ahlatlıbel, Ankara, Turkey

autor

Baştürk Ö.

• Department of Astronomy and Space Sciences, Faculty of Science, Ankara University, Tandoğan TR-06100 Ankara, Turkey Ankara University Kreiken Observatory, TR-06873, Ahlatlıbel, Ankara, Turkey

autor

Kılıçoğlu T.

• Department of Astronomy and Space Sciences, Faculty of Science, Ankara University, Tandoğan TR-06100 Ankara, Turkey Ankara University Kreiken Observatory, TR-06873, Ahlatlıbel, Ankara, Turkey

autor

Elmaslı A.

• Department of Astronomy and Space Sciences, Faculty of Science, Ankara University, Tandoğan TR-06100 Ankara, Turkey Ankara University Kreiken Observatory, TR-06873, Ahlatlıbel, Ankara, Turkey

autor

Çalışkan Ş.

• Department of Astronomy and Space Sciences, Faculty of Science, Ankara University, Tandoğan TR-06100 Ankara, Turkey Ankara University Kreiken Observatory, TR-06873, Ahlatlıbel, Ankara, Turkey

autor

İzci D. D.

• Department of Astronomy and Space Sciences, Faculty of Science, Ankara University, Tandoğan TR-06100 Ankara, Turkey Ankara University Kreiken Observatory, TR-06873, Ahlatlıbel, Ankara, Turkey

autor

Yörükoğlu O.

• Department of Astronomy and Space Sciences, Faculty of Science, Ankara University, Tandoğan TR-06100 Ankara, Turkey Ankara University Kreiken Observatory, TR-06873, Ahlatlıbel, Ankara, Turkey

autor

Selam S. O.

• Department of Astronomy and Space Sciences, Faculty of Science, Ankara University, Tandoğan TR-06100 Ankara, Turkey Ankara University Kreiken Observatory, TR-06873, Ahlatlıbel, Ankara, Turkey

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