The Dynamical Evolution of the Earth-Moon Progenitors

Details The Dynamical Evolution of the Earth-Moon Progenitors The Dynamical Evolution of the Earth-Moon Progenitors

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998baas...30q1052r&link_type=abstract

American Astronomical Society, DPS meeting #30, #21.P11; Bulletin of the American Astronomical Society, Vol. 30, p.1052

Astronomy and Astrophysics

Astronomy

Scientific paper

To simulate the dynamics of the Solar System before the hypothesized Moon-forming impact, we are integrating the Solar System with the Earth-Moon system replaced by two bodies in heliocentric orbits between Venus and Mars. Their total (orbital) angular momentum is that of the present Earth-Moon system, and their total mass is that of the Earth-Moon system. We are looking at ranges in mass ratio and initial values for eccentricity, inclination, and semi-major axis. We are using the SYMBA integrator to integrate these systems until a collision occurs or a time of 200 Myr elapses. In this poster we present and discuss some results from a series of runs in which the mass ratio is 8:1, the initial inclination of the more massive body with respect to the ecliptic is (2)/(3)(deg) , the initial eccentricity of the more massive body is either 0.00 or 0.05, and the initial semi-major axis of the less massive body varies between 0.80 AU and 1.40 AU.

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