Early NEO Deflections: A Viable, Lower-Energy Option |
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| Authors: | Andrea Carusi |
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| Institution: | (1) IASF-INAF, Rome, Italy;(2) The Ssaceguard Foundation, Rome, Italy |
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| Abstract: | This paper presents the results of some numerical simulations of deflection of Near-Earth Objects (NEOs) on a collision course
with the Earth. These simulations show that it is possible, in principle, to deviate even large objects applying in succession
moderate impulses resulting in small velocity variations of the impactor. The use of this technique of "distributed deflection"
is always applicable, provided that the impact has been detected many years in advance, and that the object passes its perihelion
many times before impact. The modest values of the required velocity variations may allow to use low-energy methods for deflection,
such as kinetic energy, thus suggesting an interesting, very flexible solution to this difficult problem. |
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| Keywords: | NEO deflection impacts numerical simulations planetary defense asteroids |
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