Explosion method of preventing collisions of asteroid-comet bodies with the Earth in the case of their late detection

Abstract

Based on the model concepts of destruction of the substance of a celestial body in the shock wave initiated by a strong explosion of weak penetration, the radius of the destroyed region, the ejected mass, and the recoil momentum have been evaluated. The values of the charges necessary for destroying completely bodies of different size and composition or withdrawing bodies from the Earth for a required distance have been determined. The efficiencies of the explosion and sublimation methods of changing orbits for the case where the hazardous bodies are comets have been compared. Problems on improving the efficiency of the explosion method of action on a hazardous body due to the high relative velocity of impact of this body with the charge-carrying rocket have been discussed.