Can tidal disruption enhance the population of small Earth-approaching objects?

Details Can tidal disruption enhance the population of small Earth-approaching objects? Can tidal disruption enhance the population of small Earth-approaching objects?

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..139b&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 139.

Mathematics

Asteroids, Comets, Many Body Problem, Earth Tides, Venus (Planet), Fragments, Statistical Analysis, Mathematical Models

Scientific paper

Asteroids or comets making close approaches to the Earth (or Venus) may undergo tidal disruption, producing numerous fragments which can be tens of meters in diameter or larger. To quantify this mass loss, we simulated encounters between rotating, strengthless, elongated, particulate bodies ('rabblepiles') and the Earth using an N-body code. By folding these results into a second code which models the evolution of Earth-crossing objects (ECOs) statistically, we found that the amount of mass removed by tidal forces per year was comparable to the main-belt injection rate of 50 m sized bodies into the 3:1 and nu6 resonances. Thus, our results suggest that tidal disruption plays an important role in maintaining the steady-state fraction of small ECOs.

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