The Origin of StarsImperial College Press, 2004 - 248 pagine Where do stars come from and how do they form? These are profound questions which link the nature of our Universe to the roots of mankind. Yet, until a recent revolution in understanding, the proposed answers have been raw speculation. Now, accompanying penetrating observations, a new picture has come into prominence.This book presents the latest astounding observations and scientific ideas covering star formation, star birth and early development. It encompasses all aspects, from the dramatic stories of individual objects, to the collective influence of entire stellar systems.The very first stars to come into existence and the nurturing of planets are discussed to provide the reader with a comprehensive overview. Presenting background information with only the essential mathematics, this book will appeal to scientists wishing to expand their horizons, students seeking solid foundations, and general readers with enquiring minds. |
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Pagina vii
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Pagina xi
... Theory 97 6.5 Turbulent Evolution of Cores . 6.6 The Approaching Birth 100 6806 99 7. The Magnetic Mediation 101 7.1 Magnetic Field Observations 102 7.2 Magnetohydrodynamics .. 103 7.3 Magnetic Field and Flux 105 7.4 Super - critical or ...
... Theory 97 6.5 Turbulent Evolution of Cores . 6.6 The Approaching Birth 100 6806 99 7. The Magnetic Mediation 101 7.1 Magnetic Field Observations 102 7.2 Magnetohydrodynamics .. 103 7.3 Magnetic Field and Flux 105 7.4 Super - critical or ...
Pagina xii
... Theory 172 10.7 Jet Theory . . . 176 10.8 Outflow Evolution 179 10.8.1 The jet flow 179 10.8.2 The bipolar outflow 180 10.9 Impact Theory . . 181 10.10 Summary 182 11. Massive Stars 185 11.1 Basic Characteristics 186 11.2 Compact HII ...
... Theory 172 10.7 Jet Theory . . . 176 10.8 Outflow Evolution 179 10.8.1 The jet flow 179 10.8.2 The bipolar outflow 180 10.9 Impact Theory . . 181 10.10 Summary 182 11. Massive Stars 185 11.1 Basic Characteristics 186 11.2 Compact HII ...
Pagina xiii
... Theory 205 12.3.1 Mechanisms 205 12.3.2 Fragmentation 206 12.4 Nearby Clusters : Observations 12.5 Cluster Formation : Theory . 12.5.1 From gas to stars . 12.5.2 Cluster relaxation . 12.5.3 Cluster dissolution 12.6 Brown Dwarves and ...
... Theory 205 12.3.1 Mechanisms 205 12.3.2 Fragmentation 206 12.4 Nearby Clusters : Observations 12.5 Cluster Formation : Theory . 12.5.1 From gas to stars . 12.5.2 Cluster relaxation . 12.5.3 Cluster dissolution 12.6 Brown Dwarves and ...
Pagina 2
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Sommario
Introduction | 1 |
1 | 7 |
5 | 25 |
The Clouds | 32 |
Cloud Formation Evolution and Destruction | 53 |
Turbulence | 72 |
The Collapse | 97 |
The Magnetic Mediation | 101 |
The Young Stars | 141 |
6 | 155 |
Jets and Outflows | 165 |
6 | 172 |
8 | 179 |
Massive Stars | 185 |
The Distributions | 219 |
Cosmological Star Formation | 221 |
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accretion disk Alfvén speed Alfvén waves ambipolar diffusion angular momentum atomic binary bipolar outflows blackbody bow shocks brown dwarfs circumstellar Class I protostars Class II sources classical clumps collapse collisions components dense density detect distribution dust dynamical emission lines envelope evolution evolve field lines flow flux fraction fragmentation free-fall Galactic galaxies GMCs high-mass HII regions hydrogen infall infrared initial instability interactions interstellar interstellar medium ionisation Jeans mass jets low-mass stars luminosity magnetic field main sequence mass stars massive stars material Mo yr-1 molecular clouds molecules motions near-infrared Nebula objects observed optical Orion parsecs photons photosphere planets predicted pressure protostar protostellar cores radiation radius range redshift rotation scale scenario shock waves simulations solar spectral spin star formation starbursts starless cores stars form stellar structure supernova supersonic surface Tauri stars temperature theory thermal timescale trigger turbulence typical velocity wavelengths wind young stars