Browsing Publications of Astronomical Society of India by Subject "period changes"

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On the orbital periods of the eclipsing binaries CM Lacertae, AB Andromedae and YY Eridani

Panchatsaram, T; Abhyankar, K. D (Astronomical Society of India, 1981-09)

A study of all the available photoelectric times of minima of CM Lac, AB And and YY Eri does not reveal any changes in their orbital periods.
A study of the period of U Ophiuchi

Panchatsaram, T (Astronomical Society of India, 1981-06)

With the available photoelectric times of minima the variations in the orbital period of U Oph can be interpreted in terms of the presence of a third body.

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