Journal Article

Photometric Study of the Binary System V397 Cephei

Ibrahim Bulut, Osman Demircan, Edwin Budding, Ahmet Erdem, Caner Çiçek, Hasan Esenoğlu, Faruk Soydugan, Esin Soydugan, Ömer L. Değirmenci, Zeynep Bozkurt and Kadri Yakut

in Publications of the Astronomical Society of Japan

Published on behalf of Astronomical Society of Japan

Volume 57, issue 2, pages 335-339
Published in print April 2005 | ISSN: 0004-6264
Published online April 2005 | e-ISSN: 2053-051X | DOI: https://dx.doi.org/10.1093/pasj/57.2.335
Photometric Study of the Binary System V397 Cephei

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The first ground-based [math] 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 [math] was found. The longitude of the periastron ([math]) 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.

Keywords: binaries: eclipsing; stars: individual (V397 Cep)

Journal Article.  2107 words.  Illustrated.

Subjects: Stars

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