Spectroscopic and photometric analysis of three detached binary systems: AP And, VZ Cep and V881 Per

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Zola S., ŞENAVCI H. V., Liakos A., Nelson R. H., Zakrzewski B.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, cilt.437, sa.4, ss.3718-3726, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 437 Sayı: 4
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1093/mnras/stt2168
  • Dergi Adı: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3718-3726
  • Anahtar Kelimeler: binaries: eclipsing, stars: evolution, stars: fundamental parameters, stars: individual: AP And, stars: individual: V881 Per, stars: individual: VZ Cep, ABSOLUTE DIMENSIONS, ECLIPSING BINARIES, VARIABLE-STAR, MASS, MODELS, RADII
  • Ankara Üniversitesi Adresli: Evet

Özet

We present results from analysis of combined spectroscopic and photometric data for three eclipsing binary systems: AP And, VZ Cep and V881 Per. Based on new, multicolour photometric light curves and spectroscopically determined mass ratio values, we derived accurate physical parameters of the components. Two of the systems, namely VZ Cep and V881 Per, were found to be magnetically active. The variability of V881 Per was studied in several sets of data [Northern Sky Variability Survey (NSVS), Wide Angle Search for Planets (WASP) and newly derived] gathered at different epochs. We show that the huge differences in the shape of its light curve can be explained by just a single model differing only in number of spots and their location on the surface of the primary component.