The lifetime of binary asteroids VS gravitational encounters and collisions

Details The lifetime of binary asteroids VS gravitational encounters and collisions The lifetime of binary asteroids VS gravitational encounters and collisions

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991icar...94..299c&link_type=abstract

Icarus (ISSN 0019-1035), vol. 94, Dec. 1991, p. 299-310. Research supported by MURST.

Physics

20

Asteroids, Gravitational Effects, Impact Strength, Perturbation Theory, Random Walk, Solar System Evolution

Scientific paper

A quantitative evaluation is made of binary asteroids' long-term stability through both gravitational encounters with passing asteroids and various physical conditions. When bodies are comparatively small, the lifetimes of asteroidal binaries are found to be limited by disruptive collisions; gravitational encounters tend to be less important. For systems whose separation is not greater than a few tens of the primarys radius, typical lifetimes are noted to be comparable to, or greater than, the solar system's age.

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