Evolution of earth-crossing binary asteroids due to gravitational encounters with the earth

Details Evolution of earth-crossing binary asteroids due to gravitational encounters with the earth Evolution of earth-crossing binary asteroids due to gravitational encounters with the earth

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...96..284f&link_type=abstract

Icarus (ISSN 0019-1035), vol. 96, no. 2, April 1992, p. 284, 285.

Computer Science

17

Asteroids, Earth (Planet), Gravitational Effects, Planetary Evolution, Planetary Gravitation, Angular Momentum, Cratering, Planetary Craters, Radar Measurement, Terrestrial Planets

Scientific paper

Due to the change in orbital energy effected by earth tidal forces in binary earth-approaching asteroids during close earth encounters, an initial population of binaries with separations of the order of a few times the sum of their component radii will evolve to a broader orbital distribution encompassing both the increased separations and smaller orbital distances. Of these, the former lead to a loosening of the components and their possible escape, while the latter leads to the creation of contact binary systems. Contact systems have been recently observed by radar.

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