Beschreibung
This monograph is based on four papers which have been published in Astrophysics and Space Sciences 1970--1974. They contain the results of our joint work started in 1968 at the University of California, San Diego, in La Jolla. The work was based on the belief that the complicated processes by which our solar system was formed can only be clarified by close collaboration between representatives of the physical and chemical sciences. Our investigations have also been strongly supported by work at other institu tions, especially by a group at the Royal Institute of Technology, Stockholm, where a number of plasma experiments have been made in order to clarify basic processes which are relevant to cosmogonic problems. These experiments were, in their turn inspired by theoretical work on primordial processes carried out during the last thirty-five years. We especially want to acknowledge the contributions by Drs N. Herlofson, B. Lehnert, C.-G. Fiilthammar, and Lars Danielsson in Stockholm and by Drs J.
Autorenporträt
InhaltsangabeI. General Principles and Observational Facts.- 1. Introduction and Survey.- 1.1. Structure of the Solar System.- 1.2. The Approach to the Evolutionary History.- 1.3. Planetary System and Satellite Systems.- 1.4. Infrared Stars.- 1.5. Plasma Phenomena.- 1.6. The Actualistic Approach.- 1.7. The Main Features of Evolutionary Processes.- 1.8. Planetary Cosmogonies.- 2. The Orbits of Planets and Satellites.- 2.1. Different Presentations of Celestial Mechanics.- 2.2. Circular Orbits.- 2.3. Oscillation.- 2.4. Coulomb Force.- 2.5. Large Eccentricity.- 2.6. Motion in the Field of a Rotating Central Body.- 2.7. Planetary Motion Perturbed by Other Planets.- 2.8. Orbital Properties of Planets and Satellites.- 2.9. Physical Properties of Planets and Satellites.- 2.10. Other Quantities of Hetegonic Importance.- 2.11. Mass Distribution in the Solar System.- 2.12. Laplacian Model vs Real Conditions.- 2.13. Titius-Bode's 'Law'.- 3. The Small Bodies.- 3.1. Forces Acting on Small Bodies.- 3.2. Production of Small Bodies: Fragmentation, Condensation and Accretion.- 3.3. Radiation Pressure. Poynting-Robertson Effect.- 3.4. Viscosity (Collisions).- 3.5. A Basic Mistake.- 3.6. Jet Streams.- 3.7. Collisions Between a Grain and a Jet Stream.- 3.8. Size Spectra.- 3.9. Three Simple Models.- 3.9.1. Non-Gravitational Accretion.- 3.9.2. Gravitational Accretion.- 3.9.3. Fragmentation.- 3.10. Asteroids.- 3.10.1. General Survey.- 3.11. Hirayama Families and Jet Streams.- 3.12. Subvisual Asteroids.- 3.13. Comets.- 3.14. Short-Period Comets.- 3.15. Meteoroids.- 3.16. Relation Between Comets and Meteoroids.- 3.17. Relation Between Asteroids and Comets-Meteoroids.- 4. Resonance Structure.- 4.1. Resonance and the Oscillation of a Pendulum.- 4.2. A Simple Resonance Model.- 4.3. Deviations from Exact Resonance.- 4.4. Resonances in the Solar System.- 4.5. Different Types of Resonances.- 4.6. Orbit-Orbit Resonances in Satellite Systems.- 4.7. On the Absence of Resonance Effects in the Saturnian Ring System.- 4.8. Orbit-Orbit Resonances in the Planetary System.- 4.9. Spin-Orbit Resonances.- 4.10. Near-Commensurabilities.- 4.11. Theory of Resonances.- 5. Spin and Tides.- 5.1. Tides.- 5.2. Amplitude of Tides.- 5.3. Tidal Braking.- 5.3.1. Fluid Body.- 5.3.2. Solid Body.- 5.3.3. Structured Bodies.- 5.4. Satellite Braking of Planetary Spins.- 5.5. Solar Tide Braking of Planetary Spin.- 5.6. Tidal Evolution of Satellite Orbits.- 5.7. The Isochronism of Spins.- 5.8. Conclusions from the Isochronism.- 6. Post-Accretional Changes in the Solar System.- 6.1. Stability of Orbits.- 6.2. Constancy of Spin.- 6.3. On the Possibility of Reconstructing the Hetegonic Processes.- References.- II. Accretion of Celestial Bodies.- 7. Formation of Celestial Bodies.- 7.1. Gravitational Contraction of a Gas Cloud.- 7.2. Condensation and Angular Momentum.- 7.3. The Early Stage of Accretion (Embryonic Growth).- 7.4. Objections to the Embryonic Accretion Mechanism.- 7.5. Accretion of Resonance Captured Grains.- 7.6. Properties Required of the Accretional Process.- 7.7. The Eccentricity of the Grain Orbits.- 7.8. Comparison with the Present State in the Asteroidal Belt.- 8. Spin and Accretion.- 8.1. Grain Impact and Spin.- 8.2. Accretion from Circular Orbits by a Non-Gravitational Embryo.- 8.3. Gravitational Accretion.- 8.4. Giuli's Theory of Accretion.- 8.5. Statistical Theory of the Accretion.- 9. On the Accretion of Planets and Satellites.- 9.1. Embryonic Accretion.- 9.2. Jet Stream as an Intermediate Step in the Formation of Planets and Satellites.- 9.3. Accretion of an Embryo.- 9.4. Accretion in a Medium of Constant Density.- 9.5 Mass Balance of the Jet Stream.- 9.6. Energy Balance in a Jet Stream.- 9.7. Accretion when the Injection in the Jet Stream is Constant.- 9.8. Numerical Values.- 9.9. Temperature of Accreted Body.- 9.10. Conclusions About the Temperature Structure of Planets.- 9.11. The Accretional Heat Front.- 9.12. Segregation Effect of the Accretional Heat Front.- References.- III.
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