Period changes in two contact binaries: V700 Cyg and PY Lyr

In this paper, orbital period variations of these two contact binaries (V700 Cyg and PY Lyr) were studied. O–C diagrams of these binaries were analyzed with the least-squares method by using all available times of minima. Apparent period changes of these two contact binaries were explained in terms...

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Bibliographic Details
Main Authors: Bulut, A., Bulut, İ., Çiçek, C., Erdem, A.
Format: Conference Proceeding
Language:English
Subjects:
Binary stars
Least squares method
Orbits
Online Access:Get full text
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Summary:In this paper, orbital period variations of these two contact binaries (V700 Cyg and PY Lyr) were studied. O–C diagrams of these binaries were analyzed with the least-squares method by using all available times of minima. Apparent period changes of these two contact binaries were explained in terms of light-time effect due to a third body. Masses of third bodies were found to be 0.014 ± 0.001 M⊙ and 0.130 ± 0.006 M⊙ for V700 Cyg and PY Lyr, respectively.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4944135