BI CVn - A spotted, overcontact, type-W eclipsing binary
NEW ASTRONOMY, cilt.29, ss.57-64, 2014 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 29
- Basım Tarihi: 2014
- Doi Numarası: 10.1016/j.newast.2013.11.006
- Dergi Adı: NEW ASTRONOMY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.57-64
- Anahtar Kelimeler: (Stars:) binaries: eclipsing, Stars: fundamental parameters, Stars: individual (BI CVn), CONTACT BINARIES, LIGHT CURVES, STARS, CYGNI
- Ankara Üniversitesi Adresli: Evet
Özet
We present photometric and spectroscopic observations of the eclipsing binary system BI CVn. Wilson-Devinney analysis of its light and radial velocity curves showed that the system is a W-subtype overcontact W-UMa type binary. We computed the absolute physical parameters of the system based on a mass ratio spectroscopically determined in this study. Though the orbital period had changed somehow in the past, it has remained constant for a long time since March 1999, contradicting the previous interpretations suggesting a cyclic variation superimposed on a quadratic change. (C) 2013 Elsevier B.V. All rights reserved.