Stability of planetary systems with respect to masses |
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Authors: | Konstantin V Kholshevnikov Eduard D Kuznetsov |
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Institution: | 1.St. Petersburg State University,St. Petersburg,Russia;2.Ural State University,Ekaterinburg,Russia |
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Abstract: | The stability in the sense of Lagrange of the Sun–Jupiter–Saturn system and 47 UMa system with respect to masses on a time
scale of 106 years was studied using the method of averaging and numerical methods. When the masses of Jupiter and Saturn increase by
20 times (approximately, more accurate value depends on a time-scale of stable motion), these planets can have close approaches.
Close approaches appear when analyzing osculating elements; they are absent in the mean elements. A similar situation takes
place in the case of 47 UMa and other exoplanetary systems. The study of Lagrange stability with respect to masses allows
us to obtain upper limits for masses of extrasolar planets. |
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