An Upper Limit of Mass for a Stable Minor Planet in the Main Asteroid Belt

Details An Upper Limit of Mass for a Stable Minor Planet in the Main Asteroid Belt An Upper Limit of Mass for a Stable Minor Planet in the Main Asteroid Belt

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cha%26a..31..164l&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 31, Issue 2, p. 164-171.

Astronomy and Astrophysics

Astrophysics

Scientific paper

The stability of an imaginary planet located in the present main asteroid belt is studied with a 7-body model (Sun, Mars, Jupiter, Saturn, Uranus, Neptune and the imaginary planet). The fourth-order Hermite algorithm P(EC)3 is used, which has a very small secular energy error for the integration of periodic orbits with a constant time-step. The evolution of orbits is followed up to 108 years. Our numerical results show that the low-order resonances with Jupiter can enhance the stability of the imaginary planet in some cases. The survival probability of the imaginary planet decreases with the planet mass. The upper limit of the imaginary planet's mass that can survive in the main belt is around 1025 kg, i.e., about the Earth's mass.

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