Photometric Study of the Binary System V397 Cephei
Articles > Article · 2005
Authors: İBRAHİM BULUT, OSMAN DEMIRCAN, E. BUDDING, AHMET ERDEM, CANER CICEK, HASAN ESENOGLU, F SOYDUGAN, E SOYDUGAN, Ömer Lütfi DEĞİRMENCİ, Zeynep BOZKURT, Kadri YAKUT
Publications of the Astronomical Society of Japan, Journal Indexed in SCI Expanded, International, WoS, 2005, vol 57, pp 335-339
Summary
Abstract The first ground-based $UBV$ observations (2001, Inf. Bull. Variable Stars, 5129) of V397 Cep were analyzed by using the Wilson–Devinney method, and the results were compared with others in the literature. A consistent geometry with a photometric mass-ratio close to unity and an eccentric orbit of $e \simeq 0.13$ was found. The longitude of the periastron ($\omega$) was found significantly different for two different light curves, which is strongly suggestive of an apsidal motion with a period of about 300 yr. This makes V397 Cep an important candidate for studies of apsidal motion.