Physics
Scientific paper
Mar 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977kosis..15..203k&link_type=abstract
Kosmicheskie Issledovaniia, vol. 15, Mar.-Apr. 1977, p. 203-207. In Russian.
Physics
1
Atmospheric Entry, Celestial Bodies, Meteorite Collisions, Planetary Atmospheres, Asteroids, Comets, Escape Velocity, Tungusk Meteorite
Scientific paper
The interaction of such celestial bodies as cometary nuclei and asteroids with planetary atmospheres is studied. It is shown that the entry of such bodies into an atmosphere does not necessarily entail impact on the planet's surface, an explosion, or dissipation in the atmosphere because with certain values of the ballistic coefficient, L/D ratio, and entry angle and velocity, the body may penetrate right through the atmosphere or ricochet and again escape into space, conserving a large portion of its velocity. It is concluded that perturbations of cometary and asteroid orbits may be due to interaction with planetary atmospheres as well as gravitational fields. It is also proposed that some basic aspects of the Tunguska event of June 30, 1908, may be explained by the passage of a celestial body through earth's atmosphere.
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