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arXiv · astro-ph/0301353

The Apsidal Antialignment of the HD 82943 System

Ji Jianghui·H. Kinoshita·Liu Lin·Li Guangyu·H. Nakai
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Abstract

We perform numerical simulations to explore the dynamical evolution of the HD 82943 planetary system. By simulating diverse planetary configurations, we find two mechanisms of stabilizing the system: the 2:1 mean motion resonance between the two planets can act as the first mechanism for all stable orbits. The second mechanism is a dynamical antialignment of the apsidal lines of the orbiting planets, which implies that the difference of the periastron longitudes $θ_{3}$ librates about $180^{\circ}$ in the simulations. We also use a semi-analytical model to explain the numerical results for the system under study.

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Ji Jianghui, H. Kinoshita, Liu Lin, Li Guangyu, H. Nakai. 2003-02-27. The Apsidal Antialignment of the HD 82943 System. https://doi.org/10.1023/a%3A1026193724121

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