Long-term radial velocity variations of o And |
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| Authors: | Livio Pastori Elio Antonello Massimo Fracassini Laura E Pasinetti |
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| Institution: | (1) Osservatorio Astronomico di Milano, Merate, Italy |
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| Abstract: | The results of radial velocity measures of the star o And from high dispersion plates relative to the years 1964, 1966, 1975 and 1976 are given. The averaged values of the 1964 and 1966 plates confirm the existence of the minimum in the trend of the radial velocities and fit well the curve obtained in the hypothesis of periodic long-term radial velocity variations with the period of 23.5 years (Fracassiniet al., 1977). Preliminary orbital elements in the hypothesis of a long period spectroscopic binary system have been tentatively drawn. |
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