On the Origin of Planets: By Means of Natural Simple Processes

Capa
World Scientific, 2011 - 454 páginas
The book begins with a historical review of four major theories for the origin of the Solar System in particular, or of planets in general, which highlight the major problems that need to be solved by any plausible theory. In many theories, including that which form the major theme of this book, the formation of planets and stars is intimately linked, so four chapters are devoted to the processes that can be described as the birth, life and death of stars.

Recent observations that have revealed the existence of planets around many Sun-like stars are described in detail, followed by a clear exposition of the Capture Theory for the origin of planets. Many aspects of this theory are illustrated with sophisticated computer modelling that convincingly demonstrates the plausibility of the theory. The Capture Theory is in complete accord with all observations, including the estimate it gives for the proportion of Sun-like stars with planets. It is the only theory that sits comfortably with all present observational and theoretical constraints.

The general theory of planet formation does not explain the detailed structure of the Solar System. An early postulated collision of two major planets is shown to explain many disparate features of the Solar System the nature of the terrestrial planets, surface features of the Moon and its relationship with Earth, asteroids, comets and dwarf planets, the relationship between Neptune, Triton and Pluto and the characteristics of meteorites, including the isotopic anomalies found in them. The postulate of a planetary collision is given support by a 2009 NASA observation of the residue of such an event around a distant young star.

 

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Conteúdo

1 Observations of Stars
1
2 Producing Protostars Embryonic Stars
19
3 The Life and Death of a Star
39
4 The Evolution of a Galactic Cluster
55
5 Exoplanets Planets Around Other Stars
65
The Capture Theory
85
7 Orbital Evolution
95
8 The Frequency of Planetary Systems
119
FreeFall Collapse
345
Fragmentation and Binary Characteristics
348
Spin Slowing Due to a Stellar wind
351
The Virial Theorem and KelvinHelmholtz Contraction
353
The Lifetime of Stars on the Main Sequence
356
The Eddington Accretion Mechanism
358
The Mass and Orbit of an Exoplanet
360
Radiation Pressure and the PoyntingRobertson Effect
361

9 Satellite Formation
131
10 Features of the Solar System
151
11 Interactions Between Planets
185
12 The Moon
203
13 Mars and Mercury
219
14 Neptune Triton and Pluto
235
15 Dwarf Planets Asteroids Comets and the Kuiper Belt
241
Their Physical and Chemical Properties
255
17 Isotopic Anomalies in Meteorites
269
18 Overview and Conclusions
295
Angular Momentum
313
Equipotential Surfaces of a Tidally Distorted Star
316
The Instability of a Gaseous Filament
318
The Jeans Critical Mass
320
The LyndenBell and Pringle Mechanism
322
Grains in Molecular Clouds
324
The Structure of a Spiral Galaxy
328
The Centre of Mass and the Orbits of Binary Stars
330
The Doppler Effect
333
Atomic Energy Levels and Stellar Spectra
335
Stellar Masses from Observations of Binary Systems
338
SmoothedParticle Hydrodynamics
341
Active Stars and Their Effect on a Stellar Disk
364
The Structure and Decay of a Stellar Disk
369
The Formation of Exoplanets
372
Disrupting a Planetary System
376
From Dust to Satellitesimals
383
From Satellitesimals to Satellites
387
The Tidal Heating of Io
391
The Trojan Asteroids
395
Orbital Precession
399
The Temperature Generated by Colliding Planets
401
Heating by DeuteriumBased Reactions
414
The Thermal Evolution of the Moon
416
The Abrasion of a Hemisphere of the Moon
420
The Roundingoff of a Highly Eccentric Satellite Orbit
422
Continental Drift on Mars
426
The Oort Cloud and Perturbing Stars
429
Planetary Perturbation of New Comets
433
Reactions and Decays
435
Cooling and Grain Formation
440
Index
445
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