On photometric masses and radiation sizes of large meteoroids.

Details On photometric masses and radiation sizes of large meteoroids. On photometric masses and radiation sizes of large meteoroids.

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995avest..29..155n&link_type=abstract

Astronomicheskii Vestnik, Tom 29, No. 2, p. 155 - 173

Astronomy and Astrophysics

Astronomy

2

Meteoroids: Masses, Meteoroids: Space Research, Meteoroids: Photometry

Scientific paper

It is pointed out that the method of determining the characteristics of large meteor bodies in the Earth's atmosphere based on notion of photometric mass, on ideas of the dominating role of radiation of vapors, and on empirical values of coefficients of luminosity derived for small meteoroids is incorrect. A theory of meteor phenomena based on ideas of the dominating role of radiation of shock waves is presented. Notion of effective radiation radius associated with intensity of radiation in a given moment is introduced. On the basis of the developed model and of radiation gas-dynamical calculations, a method of determination of characteristics of meteoroids using data of satellite observations at bursts of radiation with energies in the range 1 - 10 kt TNT or more is presented. Estimations of characteristics of the body, which caused the burst of radiation 10 October 1990 are given.

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