A Dynamical Analysis of the GJ 876 and HD 82943 Systems

Details A Dynamical Analysis of the GJ 876 and HD 82943 Systems A Dynamical Analysis of the GJ 876 and HD 82943 Systems

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aspc..289...89j&link_type=abstract

The Proceedings of the IAU 8th Asian-Pacific Regional Meeting, Volume I, held 2-5 July 2002 at National Center of Sciences, Hito

Astronomy and Astrophysics

Astronomy

Scientific paper

We carry out simulations to investigate the dynamical evolution of the GJ 876 and HD 82943 planetary systems consisting of two resonant Jupiter-like planets respectively, and reveal a possible stabilizing mechanism for maintaining the systems. By simulating and analyzing different coplanar and non-coplanar configurations, we find that all the stable cases are involved in the 2:1 mean motion resonance and that the alignment of the periastron of the two planets also plays an important part in the secular orbital evolution of the multi-planetary systems, indicating that the two kinds of mechanisms could be responsible for the dynamics of the two systems.

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