English

A comprehensive study of the eclipsing binaries V1241 Tau and GQ Dra

Solar and Stellar Astrophysics 2021-02-17 v1

Abstract

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 curves analyses combining with the TESS light curves show that both are conventional semi-detached binary systems. Their absolute parameters are also derived. We present the OCO-C analyses of the systems and we propose the most possible 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\delta Sct type pulsator with a dominant pulsation frequency of 18.58 d1^{-1} based on our BB filter residual light curve although it can not be justified by 30-minute cadence TESS data. No satisfactory evidence of pulsational behaviour for V1241 Tau was verified. Finally, the evolutionary tracks of the components of both systems are calculated, while their locations within evolutionary diagrams are compared with other Algol-type systems.

Keywords

Cite

@article{arxiv.2009.10360,
  title  = {A comprehensive study of the eclipsing binaries V1241 Tau and GQ Dra},
  author = {B. Ulas and K. Gazeas and A. Liakos and C. Ulusoy and I. Stateva and N. Erkan and M. Napetova and I. Kh. Iliev},
  journal= {arXiv preprint arXiv:2009.10360},
  year   = {2021}
}

Comments

Accepted for publication in Acta Astronomica. 24 pages, 10 figures