BO Ari Light Curve Analysis using Ground-Based and TESS Data

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Poro A., Zamanpour S., Hashemi M., Aladag Y., AKSAKER N., Rezaei S., ...Daha Fazla

NEW ASTRONOMY, cilt.86, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 86
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.newast.2021.101571
  • Dergi Adı: NEW ASTRONOMY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: Techniques: photometric, Stars: binaries: eclipsing, Stars: individual: BO Ari
  • Çukurova Üniversitesi Adresli: Evet

Özet

We present new BVR band photometric light curves of BO Aries obtained in 2020 and combined them with the Transiting Exoplanet Survey Satellite (TESS) light curves. We obtained times of minima based on Gaussian and Cauchy distributions and then applied the Monte Carlo Markov Chain (MCMC) method to measure the amount of uncertainty from our CCD photometry and TESS data. A new ephemeris of the binary system was computed employing 204 times of minimum. The light curves were analyzed using the Wilson-Devinney binary code combined with the Monte Carlo (MC) simulation. For this light curve solution, we considered a dark spot on the primary component. We conclude that this binary is an A-type system with a mass ratio of q = 0.2074 +/- 0.0001, an orbital inclination of i = 82.18 +/- 0.02 deg, and a fillout factor of f = 75.7 +/- 0.8%. Our results for the a (R-circle dot) and q parameters are consistent with the results of the Xu-Dong Zhang and Sheng-Bang Qian (2020) model. The absolute parameters of the two components were calculated and the distance estimate of the binary system was found to be 142 +/- 9 pc.