Analysis of 11 Late-Type Close Binary Systems *
K. C. Lfung, D. S. Zhai, R. X. Zhang, Q. Y. Liu, J. T. Zhang, Y. L. Yang
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12 April 2016, p. 411
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This is a preliminary report on the joint research project between 3 observatories: Beijing, Yunnan, and Behlen Observatories from China and the United States. The systems we have been dealing with are primary of late spectral types and with short periods. Most.of the observations were secured from the observatories in China. The computational analysis is carried out in University of Nebraska, Lincoln. The photometric solutions are based on the Wilson and Devinney method. Out of 11 systems analyzed 6 of them: AO Cam. ER Ori. BX Peg, BB Peg, U Peg, and SW Lac are found to be contact systems. All of them are having their primary eclipses at occultation. Therefore they can be classified as W-type WUMa systems. They also show other W-type characteristics.

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Published online by Cambridge University Press:

12 April 2016, p. 412
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IAC volume 80 Cover and Front matter
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12 April 2016, pp. f1-f6
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IAC volume 80 Cover and Back matter
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12 April 2016, pp. b1-b7
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Proceedings of the International Astronomical Union

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