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Browsing by Author "Panchatsaram, T"

Browsing by Author "Panchatsaram, T"

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  • Light-time effect in AK Her and ER Ori 
    Abhyankar, K. D; Panchatsaram, T (Astronomical Society of India, 1982-12)
    An analysis of the minimum-time data of AK Her and ER Ori revelas possible sinudodal variations in their orbital periods. In the case of AK Her we suspect two additional components; one of mass 0.2 to 0.4 MSun with a period ...
  • 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.
  • Secular period changes in ten eclipsing binaries 
    Panchatsaram, T; Abhyankar, K. D (Astronomical Society of India, 1982-06)
    The photoelectric times of minima, available for the eclipsing binaries KO Aql, V566 Oph, AH Vir, AG Vir, 44i Boo B, RT And , SV Cam, Tv Cas, AT Lac and U Peg have been analysed to study their orbital periods. KO Aqi, V566 ...
  • 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.
  • SW Lacertae - A quadruple system 
    Panchatsaram, T; Abhyankar, K. D (Astronomical Society of India, 1981-03)
    Orbital period study using photoelectric times of minima of SW Lac revelas that the period change is caused by the orbital motion of a triple system around a fourth body. The orbital periods of the third and the fourth ...

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