Abstract
Hα wide and narrow-band photoelectric observations of the eclipsing binary R CMa were made at the Biruni Observatory between 18 February to 2 March, 1983. The light curves obtained from the observations are analysed according to Kopal's method for the orbital elements by using frequency-domain techniques. A total of obvervations was secured and light curves were formed from these data. From the available evidence it appears likely that an exchange has taken place on the angle of the first contact and is probably continuing at the present time in the system. New geometric and photometric elements are derived and new value for the angle of the first contact is also given.
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Contribution No. 11, Biruni Observatory.
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Edalati, M.T., Khalesse, B. & Riazi, N. Hα-wide and narrow-band photometry of R canis majoris. Astrophys Space Sci 151, 1–28 (1989). https://doi.org/10.1007/BF00643626
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DOI: https://doi.org/10.1007/BF00643626