Physics
Scientific paper
Mar 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...96...43h&link_type=abstract
Icarus (ISSN 0019-1035), vol. 96, March 1992, p. 43-64.
Physics
45
Amphitrite Asteroid, Eccentric Orbits, Orbit Perturbation, Planetary Orbits, Radiation Pressure, Solar Radiation, Gravitational Effects, Planetary Surfaces, Solar Gravitation
Scientific paper
Recently, Hamilton and Burns (1991) characterized the size and shape of a stability zone around an asteroid on a circular heliocentric orbit within which asteroid material could remain bound for an extended period of time. The present paper considers two additional effects: the asteroid's nonzero heliocentric eccentricity and solar radiation pressure. Results of numerical analyses show that, for an asteroid on an eccentric orbit, the stability zone scales roughly as the size of the Hill sphere calculated at the asteroid's pericenter. It was also found that solar radiation pressure is a very efficient mechanism for removing small (on the order of 0.1 mm) particles from circular asteroidal zone. Particles larger than a few centimeters are only slightly affected by radiation pressure. The results are applied to the Gaspra 951 asteroid.
Burns Joseph A.
Hamilton Douglas P.
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