Lequeux The Interstellar Medium

1. Auflage 2005
ISBN: 978-3-540-26693-8
Verlag: Springer Berlin Heidelberg
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 440 Seiten

Reihe: Astronomy and Astrophysics Library

Describing interstellar matter in our galaxy in all of its various forms, this book also considers the physical and chemical processes that are occurring within this matter. The first seven chapters present the various components making up the interstellar matter and detail the ways that we are able to study them. The following seven chapters are devoted to the physical, chemical and dynamical processes that control the behaviour of interstellar matter. These include the instabilities and cloud collapse processes that lead to the formation of stars. The last chapter summarizes the transformations that can occur between the different phases of the interstellar medium. Emphasizing methods over results, The Interstellar Medium is written for graduate students, for young astronomers, and also for any researchers who have developed an interest in the interstellar medium.

Autoren/Hrsg.

Lequeux, James

Inhaltsverzeichnis

1;Foreword;6
2;Contents;9
3;1 Our Galaxy, Host of the Interstellar Medium;15
3.1;1.1 Our Galaxy: Orders of Magnitude;16
3.2;1.2 Stellar Populations;19
3.3;1.3 Distribution of Interstellar Matter;23
4;2 Radiations and Magnetic Fields;27
4.1;2.1 Radiation Fields;27
4.2;2.2 The Interstellar Magnetic Fields;34
5;3 Radiative Transfer and Excitation;41
5.1;3.1 The Transfer Equation;41
5.2;3.2 Two-Level System out of LTE;47
5.3;3.3 The General Case; Masers;53
6;4 The Neutral Interstellar Gas;59
6.1;4.1 The Atomic Neutral Gas;59
6.2;4.2 The Molecular Component;77
7;5 The Ionized Interstellar Gas;100
7.1;5.1 Hii Regions;100
7.2;5.2 The Diffuse Ionized Gas;123
7.3;5.3 The Hot Gas;125
7.4;5.4 The X-Ray Absorption;130
8;6 The Interstellar Medium at High Energies;132
8.1;6.1 Cosmic Rays;132
8.2;6.2 The Gamma-Ray Continuum;146
8.3;6.3 The Mass of the Interstellar Medium;150
8.4;6.4 The Gamma-Ray Lines;158
9;7 Interstellar Dust;162
9.1;7.1 Interstellar Reddening and Extinction;163
9.2;7.2 Interstellar Dust Emission;172
9.3;7.3 Global Dust Models;186
9.4;7.4 Infrared Absorptions and Ice Mantles;187
9.5;7.5 The Infrared Fluorescence;190
10;8 Heating and Cooling of the Interstellar Gas;191
10.1;8.1 Heating Processes;192
10.2;8.2 Cooling Processes;209
10.3;8.3 Thermal Equilibrium and Stability;215
11;9 Interstellar Chemistry;221
11.1;9.1 Gas-Phase Chemistry;221
11.2;9.2 Chemistry on Dust Grains;227
11.3;9.3 Equilibrium Chemistry and Chemical Kinetics;231
11.4;9.4 Some Results;233
12;10 Photodissociation Regions;239
12.1;10.1 General Presentation;239
12.2;10.2 Physico-Chemistry;241
12.3;10.3 Stationary Models;245
12.4;10.4 Out of Equilibrium Models;252
13;11 Shocks;253
13.1;11.1 The Equations of Gas Dynamics;253
13.2;11.2 Different Types of Shocks;256
13.3;11.3 Non-Stationary Shocks;264
13.4;11.4 Physico-Chemistry in Shocks;266
13.5;11.5 Radiation and the Diagnosis of Shocks;269
13.6;11.6 Instabilities in Shocks;271
14;12 Shock Applications;274
14.1;12.1 Supernova Remnants;274
14.2;12.2 Bubbles;283
14.3;12.3 The Dynamics of Hii Regions;285
14.4;12.4 The Acceleration of Cosmic Rays;295
15;13 Interstellar Turbulence;312
15.1;13.1 Velocity Structure and Fragmentation;312
15.2;13.2 Incompressible Turbulence;315
15.3;13.3 Turbulence in the Interstellar Medium;320
15.4;13.4 Some Effects of Interstellar Turbulence;323
16;14 Equilibrium, Collapse and Star Formation;331
16.1;14.1 Stability and Instability: the Virial Theorem;331
16.2;14.2 Collapse and Fragmentation;350
16.3;14.3 The End of Collapse: Star Formation;357
16.4;14.4 The Initial Mass Function and Its Origin;358
17;15 Changes of State and Transformations;362
17.1;15.1 Atomic, Molecular andWarm Ionized Gas;363
17.2;15.2 Hot Gas and the Galactic Fountain;369
17.3;15.3 Gas–Dust Exchange;372
17.4;15.4 Evolution of Interstellar Dust;374
18;A Designation of the Most Used Symbols;379
19;B Principal Physical Constants;382
20;C Journal Titles Abbreviations;385
21;References;386
22;Index;400