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Formation of the Planetary Sequence in a Highly Flattened Disk of Frequently Colliding Planetesimals

Published online by Cambridge University Press:  26 May 2016

Evgeny Griv ,
Michael Gedalin ,
David Eichler  and
Chi Yuan
Evgeny Griv
Affiliation:
Dept. of Physics, Ben-Gurion University, Beer-Sheva 84105, Israel
Michael Gedalin
Affiliation:
Dept. of Physics, Ben-Gurion University, Beer-Sheva 84105, Israel
David Eichler
Affiliation:
Dept. of Physics, Ben-Gurion University, Beer-Sheva 84105, Israel
Chi Yuan
Affiliation:
Academia Sinica Institute of Astronomy, Taipei 11529, Taiwan

Abstract

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The kinetic theory is used to study the evolution of the self-gravitating disk of planetesimals. The effects of frequent collisions between planetesimals are taken into account by using a Krook integral in the Boltzmann kinetic equation. It is shown that as a result of an aperiodic collision-dissipative instability of small gravity disturbances the disk is subdivided into numerous dense fragments. These can eventually condense into the planetary sequence.

Type
Part II: Progress in the theory of planet formation
Information
Symposium - International Astronomical Union , Volume 202: Planetary Systems in the Universe – Observation, Formation and Evolution , 2004 , pp. 181 - 183
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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