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Explosive evolution of small bodies in planetary atmospheres

Published online by Cambridge University Press:  05 January 2015

Subhon Ibadov  and
Firuz S. Ibodov
Subhon Ibadov
Affiliation:
Lomonosov Moscow State University, SAI, Moscow, Russia email: [email protected] Institute of Astrophysics, TAS, Dushanbe, Tajikistan
Firuz S. Ibodov
Affiliation:
Lomonosov Moscow State University, SAI, Moscow, Russia email: [email protected]
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Abstract

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The entry of small celestial bodies such as cometary nuclei, asteroids and their large fragments, into a planetary atmosphere is accompanied by an “explosion”, i.e., sudden rise in brightness and the generation of a “blast” shock wave, like the 2013 Chelyabinsk event. Fully analytic approach to the phenomenon is developed taking into account aerodynamic crushing of the body and transversal expansion of the crushed mass, that leads to impulse generation of hot plasma and a “blast” shock wave in the thin “exploding” layer.

Keywords

planets: atmospherescomets: generalminor planetsasteroidsaerodynamic crushinghot plasma
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Issue S310: Complex Planetary Systems , July 2014 , pp. 162 - 163
Copyright
Copyright © International Astronomical Union 2014 

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