Absolute and geometric parameters of contact binary V1918 Cyg

Gurol B.

New Astronomy, cilt.47, ss.57-63, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 47
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.newast.2016.02.005
  • Dergi Adı: New Astronomy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.57-63
  • Anahtar Kelimeler: Stars: binaries: eclipsing, Stars: fundamental parameters, Technique: photometry & spectroscopy, Stars: individual (V1918 Cyg), LIGHT CURVES, STAR LIGHT, SYSTEMS
  • Ankara Üniversitesi Adresli: Evet

Özet

© 2016 Elsevier B.V. All rights reserved.We present the results of our investigation on the geometrical and physical parameters of the W UMa type binary system V1918 Cyg from analyzed CCD (BVR) light curves and radial velocity data. We used the photometric data published by Yang et al. (2013) and spectroscopic data obtained in 2012 at TUBITAK National Observatory (TUG). The light and radial velocity observations were analyzed simultaneously by using the Wilson-Devinney (2015 revision) code to obtain absolute and geometrical parameters of the system. It is confirmed that the system is an A-type W UMa as indicated by Yang et al. (2013). Combining our spectroscopic data with the photometric solution we derived masses and radii of the eclipsing system as M1=1.302M⊙,M2=0.362M⊙,R1=1.362R⊙ and R2=0.762R⊙. Finally, we discuss the evolutionary status of the system.