Mass loss from the region of Mars and the asteroid belt

Details Mass loss from the region of Mars and the asteroid belt Mass loss from the region of Mars and the asteroid belt

Nov 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975icar...26..361w&link_type=abstract

Icarus, vol. 26, Nov. 1975, p. 361-366.

Astronomy and Astrophysics

Astronomy

12

Asteroids, Mass Transfer, Solar System, Astronomical Models, Gravitational Effects, Jupiter (Planet), Mars (Planet), Orbit Calculation, Perturbation Theory, Stellar Mass Ejection

Scientific paper

Models of the solar nebula suggest that the mass of solid matter which condensed in the region of Mars and the asteroids was much greater than the amount now present. Bombardment by a primordial population of asteroidal bodies originating near Jupiter's orbit could preferentially remove matter from this region, without significant effects in the earth's zone. A critical velocity exists, for which they can be ejected from the solar system by Jupiter. The minimum perihelion attainable at this velocity lies between the orbits of Mars and the earth. The lifetimes of Mars-crossing bodies are limited by collisions with Jupiter; earth-crossers are ejected on a much shorter time scale. The total bombardment flux was at least two orders of magnitude greater in the zone of Mars than in that of the earth. The flux at Venus and Mercury from this source was negligible.

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