The Tunguska event and meteors with a final flare

Details The Tunguska event and meteors with a final flare The Tunguska event and meteors with a final flare

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986avest..19..319l&link_type=abstract

(Astronomicheskii Vestnik, vol. 19, Oct.-Dec. 1985, p. 319-330) Solar System Research (ISSN 0038-0946), vol. 19, no. 4, April 19

Other

Bolides, Meteoroids, Stony Meteorites, Tungusk Meteorite, Comets, Fragmentation, Orbital Elements, Porous Materials

Scientific paper

The characteristics of the Tonguska event are considered in terms of the progressive fragmentation of the central body and comparisons with other bright meteors and bolides. It is known that meteor flare is caused by the separation from the body of fine particles 0.02 cm in diam with masses of about 1/100,000 gr. The intensity of mass removal is greater with larger meteors due to vaporization and melting. Destruction occurs from fragmentation due to compressive stresses arising from the pressure gradient on the front and rear surfaces of the body. Analyses of the energy released during the Tonguska event indicate that the object was an ordinary stony meteorite with a density of close to 3 gr/cu cm. Further consideration of the possible orbits and entry velocity of the object indicate that the possibility that the object was a comet or cometary fragment can not be ruled out.

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