Collision probabilities of migrating small bodies and dust particles with planets

Details Collision probabilities of migrating small bodies and dust particles with planets Collision probabilities of migrating small bodies and dust particles with planets

2009-10-16

arxiv.org/abs/0910.3017v1

IAU Symp.263:41-44,2010

Astronomy and Astrophysics

Astrophysics

Earth and Planetary Astrophysics

7 pages (original paper consists of 4 pages, with all sub-figures on one page). Proceedings of the IAU Symposium 263 "Icy bodi

Scientific paper

10.1017/S174392131000147X

Probabilities of collisions of migrating small bodies and dust particles produced by these bodies with planets were studied. Various Jupiter-family comets, Halley-type comets, long-period comets, trans-Neptunian objects, and asteroids were considered. The total probability of collisions of any considered body or particle with all planets did not exceed 0.2. The amount of water delivered from outside of Jupiter's orbit to the Earth during the formation of the giant planets could exceed the amount of water in Earth's oceans. The ratio of the mass of water delivered to a planet by Jupiter-family comets or Halley-type comets to the mass of the planet can be greater for Mars, Venus, and Mercury, than that for Earth.

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