The Formation of the Planetary Sequence in a Rotating, Self-Gravitating Disk of Randomly Colliding Planetesimals Conference Paper uri icon

abstract

  • Astrophysical Ages and Time Scales ASP Conference Series, Vol. 245, 2001 T. von Hippel, C. Simpson, N. Manset The Formation of the Planetary Sequence in a Rotating, Self-Gravitating Disk of Randomly Colliding Planetesimals E. Griv, M. Gedalin, D. Eichler, E. Liverts Department of Physics, Ben- Gurion University of the Negev, PO Box 653, Beer-Sheva 8~1O5, Israel Abstract. The kinetic theory is used to study the evolution of the selfgravitating disk of randomly colliding planetesimals. It is shown that as a result of an almost aperiodic Jeans-type instability of small-amplitude gravity disturbances, the disk is subdivided into numerous dense fragments. These can eventually condense into the planetary sequence with mathematical regularity in the spacing formulated empirically by Titius and Bode. 1. Linear Kinetic Theory Planetary formation is thought to start with dust particle settling to the central plane of a rotating nebula to …

publication date

  • January 1, 2001