Light-Time Effect in Two Eclipsing Binaries: NO Vul and EW Lyr

Bulut A. , Bulut I. , Cicek C., Erdem A.

32nd International Physics Congress of Turkish-Physical-Society (TPS), Bodrum, Türkiye, 6 - 09 Eylül 2016, cilt.1815 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1815
  • Doi Numarası: 10.1063/1.4976438
  • Basıldığı Şehir: Bodrum
  • Basıldığı Ülke: Türkiye


In this study, orbital period variations of two eclipsing binary systems (NO Vul and EW Lyr) were discussed. Possible light time effects due to third bodies in these systems were re-examined. The mass function and orbital period of hypothetical third bodies were calculated to be 0.000627 +/- 1.000003 M-circle dot, 26.17 +/- 0.05 years and 0.12682 +/- 0.00003 M-circle dot, 77.23 +/- 0.72 years for NO Vul and EW Lyr, respectively.