Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998stin...9919762k&link_type=abstract
Technical Report, AD-A356196; AFIT-98-013
Astronomy and Astrophysics
Astrophysics
Asteroid Collisions, Hypervelocity Impact, Asteroids, Impact Damage, Earth Surface, Impact Prediction, Cometary Collisions, Fragmentation, Deflection, Trajectories
Scientific paper
Asteroids with orbits intersecting earth pose varying levels of threat to mankind and our planet. A small object, 100 m diameter, can wipe out cities the size of New York or San Francisco. Larger objects, >1 km diameter, impacting the Earth can have global, catastrophic consequences. Possible ways of preventing dangerous objects from colliding with Earth are presented in this investigation. Methods of asteroid mitigation fall into two general classes: deflection and fragmentation. Significant work has been done in both areas, but the majority of the numerical results have been for general types (i.e. sizes) of asteroids. This investigation will give numerical results for three real asteroids that get within 0.04 AU of Earth or closer. Results are produced for a variety of techniques, both deflection and fragmentation, available for hazard mitigation.
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