Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-05T11:07:08.075Z Has data issue: false hasContentIssue false
  • English
  • Français

Cometary nature of the 1908 Tunguska cosmic body

Published online by Cambridge University Press:  06 April 2010

F. S. Ibodov ,
S. S. Grigorian  and
S. Ibadov
F. S. Ibodov
Affiliation:
Moscow State University, Moscow, Russia, emails [email protected], [email protected], [email protected]
S. S. Grigorian
Affiliation:
Moscow State University, Moscow, Russia, emails [email protected], [email protected], [email protected]
S. Ibadov
Affiliation:
Institute of Astrophysics, Dushanbe, Tajikistan email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The cometary nature of the 1908 Tunguska cosmic body is compatible with the predictions of an analytical theory of the 1908 Tunguska explosion developed in 1976–1979. The theory takes into account the three simultaneously occurring processes, namely aerodynamic destruction of the cosmic body in the Earth's atmosphere, transversal expansion of the crushed mass under the action of pressure gradient on the frontal surface of the body, and an aerodynamic deceleration of crushed expanding mass. The use, for the mechanical parameters of the Tunguska cosmic body, of the characteristics of a cometary nuclei such as that of comet Halley 1986 III and comet Shoemaker – Levy 9 1994, gives parameters of the Tunguska explosion derived from observations of Tunguska event in the Siberian taiga in 1908.

Keywords

comets: generalflares: comet nucleiplanetary atmospheresaerodynamic destructiontransversal expansionTunguska explosion
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S263: Icy Bodies of the Solar System , August 2009 , pp. 269 - 271
Copyright
Copyright © International Astronomical Union 2010

References

Fesenkov, V. G. 1949, Meteoritika, 6, 8Google Scholar
Grigorian, S. S. 1976, Dokl. Akad. Nauk SSSR, 231, 57Google Scholar
Grigorian, S. S. 1979, Kosmich. Issled., 17, 875Google Scholar
Grigorian, S. S. 1994, Dokl. Akad. Nauk, 338, 752Google Scholar
Ibadov, S., Ibodov, F. S., & Grigorian, S. S. 2008a, in: Intern. Conf. “100 Years Since Tunguska Phenomenon: Past, Present and Future” tunguska.sai.msu.ru/index.php?q=presentGoogle Scholar
Ibadov, S., Ibodov, F. S. & Grigorian, S. S. 2007, in: Star-Disk Interaction in Young Stars, Proc. IAU Symp. No. 243, Grenoble, France, p. VI.4 www.iaus243.orgGoogle Scholar
Ibadov, S., Ibodov, F. S. & Grigorian, S. S. 2008b, in: Universal Heliophysical Processes, Proc. IAU Symp. No. 257, Cambridge University Press, 341Google Scholar
Korobeinikov, V. P., Chushkin, P. I., & Shurshalov, L. V. 1991, Astron. Vestnik, 25, 327Google Scholar
Marov, M. Ya. 1994, Astron. Vestnik, 28, 5Google Scholar
Petrov, G. I. & Stulov, V. P. 1975, Kosmich. Issled. (Letters), 13, 587Google Scholar
Reinhard, R. 1986, Nature, 321, 313Google Scholar
Sagdeev, R. Z., Blamont, J., Galeev, A. A., Moroz, V. I., Shapiro, V. D., Shevchenko, V. I., & Szego, K. 1986, Nature, 321, 259Google Scholar
Surdin, V. G, Romeiko, V. A, & Koval, V. I. 1982, Astron. Circular USSR, 1206, 1Google Scholar