Model of the accumulation process in the formation of planetary systems. I. Numerical experiments

Journal Article · Wed Apr 01 00:00:00 EST 1981 · Sol. Syst. Res. (Engl. Transl.); (United States)

OSTI ID:5787806

Eneev, T M; Kozlov, N N

This work considers the evolution of a plane protoplanetary nebula consisting of a large number of bodies (protoplanets), which interact gravitationally, combine on contact, and move in the field of a massive central body (the sun or a planet). It is assumed that the gravitational interaction between bodies occurs only during their binary close approach. It is also assumed that the bodies move in Keplerian orbits between close approaches and that the orbits of all the bodies are circular at the initial time of evolution of the cloud. The so-called limit model of the accumulation process, in which each close approach of bodies is terminated by their combining, is considered. It is shown that in the course of evolution of such a model there appear annular zones of material condensation whose subsequent development leads to the formation of planets with predominantly direct rotation about their axes. The principal numerical results are obtained by computer simulation of the planetary accumulation process.

• OSTI ID: 5787806
• Journal Information: Sol. Syst. Res. (Engl. Transl.); (United States), Vol. 15:2; Other Information: Translated from Astron. Vestn.; 15: No. 2, 80-94(Apr-Jun 1981)
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
PLANET-SYSTEM ACCRETION
MATHEMATICAL MODELS
COMPUTERIZED SIMULATION
DISTANCE
GRAVITATIONAL INTERACTIONS
MASS
NEBULAE
NUMERICAL SOLUTION
ORBITS
PLANETARY EVOLUTION
PROTOPLANETS
ROTATION
SOLAR SYSTEM EVOLUTION
BASIC INTERACTIONS
INTERACTIONS
MOTION
SIMULATION
640107* - Astrophysics & Cosmology- Planetary Phenomena