First TESS light curve solution and orbital period analysis of V567 And


Öztürk O.

New Astronomy, vol.93, 2022 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 93
  • Publication Date: 2022
  • Doi Number: 10.1016/j.newast.2021.101763
  • Journal Name: New Astronomy
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: Binaries, Eclipsing, Individual (V567 And), Stars
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

© 2022 Elsevier B.V.The photometric light curve of V567 And observed by the Transiting Exoplanet Survey Satellite (TESS) was solved for the first time in this study. According to the final model parameters, it was concluded that the system is a semi-detached eclipsing binary star system. The mass and radius values of the primary and secondary components were estimated as M1=1.83±0.18 M⊙ and R1=3.16±0.21 R⊙, and M2=0.22±0.07 M⊙ and R2=2.63±0.43 R⊙, respectively. Orbital period variation of the system was also investigated for the first time in this study using one minima time given in the literature and 31 minima times calculated in this study. The downward parabolic variation of the O-C change of the system suggests a secular period decrease with a rate of 0.276±0.031 s/year. The O-C variation was interpreted in terms of the non-conservative mass transfer mechanism. The distance of V567 And was calculated to be 1229±61 pc from the distance modulus formula by taking into account interstellar extinction, which is in a good agreement with the distance value derived from the Gaia EDR3 parallax within error limits.