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

S. Zoła | Zendy; H. V. Şenavcı | Zendy; A. Liakos | Zendy; R. Nelson | Zendy; B. Zakrzewski | Zendy

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

Author(s) -

S. Zoła,

H. V. Şenavcı,

A. Liakos,

R. Nelson,

B. Zakrzewski

Publication year - 2013

Publication title -

monthly notices of the royal astronomical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.058

H-Index - 383

eISSN - 1365-8711

pISSN - 0035-8711

DOI - 10.1093/mnras/stt2168

Subject(s) - physics , astrophysics , light curve , binary number , contact binary , sky , planet , astronomy , primary component , binary star , mass ratio , photometry (optics) , stars , computer network , arithmetic , mathematics , computer science

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

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