Two problems pertaining to the dynamics of the origin of the Moon, and its subsequent orbital evolution
Abstract
Accretional capture of the Moon by the Earth is studied. The eccentricity of the Moon's initial heliocentric orbit, its separation from Earth at perihelion, and the time scale of accretion are varied. Within the framework of a two-body problem, a significant window for capture exists if a large portion of the Earth is accreted in less than 100 years. Accretional capture is favored by both rapid accretion rates and an eccentric heliocentric lunar orbit. The orbital evolution of a dumbbell shaped satellite with linear flexibility and damping is studied in order to model the orbital effects of tides raised on the Moon. The perturbing effects of the satellite's shape, energy storage, and dissipation will cause small deviations from the elliptical path as well as causing the orbital elements which describe the ellipse to slowly change in time.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- 1980
- Bibcode:
- 1980PhDT.........2N
- Keywords:
-
- Earth-Moon System;
- Lunar Orbits;
- Lunar Tides;
- Moon;
- Two Body Problem;
- Solar Orbits;
- Solar System;
- Astrophysics