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28 March 2024
 
  » arxiv » astro-ph/0301353

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The Apsidal Antialignment of the HD 82943 System
Ji Jianghui ; H. Kinoshita ; Liu Lin ; Li Guangyu ; H. Nakai ;
Date 17 Dec 2002
Journal Celest.Mech.Dyn.Astron. 87 (2003) 113-120 DOI: 10.1023/A:1026193724121
Subject astro-ph
Affiliation1,3), H. Kinoshita , Liu Lin (2,3), Li Guangyu (1,3), H. Nakai (Purple Mountain Observatory, Nanjing Univ., NAOC, NAOJ
AbstractWe 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 $ heta_{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.
Source arXiv, astro-ph/0301353
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