dc.contributorInstituto Nacional de Pesquisas Espaciais (INPE)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:29:50Z
dc.date.available2014-05-20T15:29:50Z
dc.date.created2014-05-20T15:29:50Z
dc.date.issued2004-01-01
dc.identifierImpact of Minor Bodies of Our Solar System on Planets and Their Middle and Upper Atmosphere. Kidlington: Pergamon-Elsevier B.V., v. 33, n. 9, p. 1534-1538, 2004.
dc.identifier0273-1177
dc.identifierhttp://hdl.handle.net/11449/39327
dc.identifier10.1016/S0273-1177(03)00459-9
dc.identifierWOS:000222364500014
dc.identifier0960024575647258
dc.identifier6652169083464327
dc.identifier0000-0002-0516-0420
dc.description.abstractIn the present work is analyzed the contribution of the Moon on the collisional process of the Earth with asteroids (NEOs). The dynamical system adopted is the restricted four-body problem Sun-Earth-Moon-particle. Using a simple analytical approach one can verify that, the orbit of an object can be significantly affected by the Moon's gravitational field when their relative velocity is smaller than 5 km/s. Therefore, the present work is based on hypothetical asteroids whose velocities relative to Moon are of the order of 1 km/s. In fact, there are several real objects (NEOs) with such velocities at the point they cross the Earth's orbit. The net results obtained indicate that the Moon helps to avoid collisions (2.6%) more than it contributes to extra collisions (0.6%). (C) 2003 COSPAR. Published by Elsevier Ltd. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationImpact of Minor Bodies of Our Solar System on Planets and Their Middle and Upper Atmosphere
dc.relation1.529
dc.relation0,569
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.titleCollisions with the Earth: the Moon's contribution
dc.typeArtículos de revistas


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