Photometric Observations and Apsidal Motion Study of V1143 Cyg |
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| Authors: | A Dariush N Riazi A Afroozeh |
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| Institution: | (1) Physics Department, Arsenjan Azad University, Arsenjan, Iran;(2) Physics Department and Biruni Observatory, Shiraz University, Shiraz, 71454, Iran;(3) IPM, Farmanieh, Tehran, Iran;(4) Biruni Observatory, Shiraz University, Shiraz, 71454, Iran |
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| Abstract: | Photometric observations of the eccentric eclipsing binary V1143 Cyg were performed during Aug.–Sep. 2000 and July 2002, in
Johnson B and V bands. The analysis of both light curves was made separately using the 1998 version of Wilson’s LC code. In order to find
a new observed rate of apsidal motion, we followed the procedure described by Guinan and Maloney (1985). A new observed rate
of apsidal motion of 3∘.72/100 yr was computed, which is close to the one reported earlier by Khaliullin (1983), Gimenez and Margrave (1985), and
Burns et al. (1996). |
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| Keywords: | binaries stars |
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