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The Interstellar Medium

:	James Lequeux
:	The Interstellar Medium
:	Springer-Verlag
:	9783540266938
:	1
:	CHF 133.60
:

:	Astronomie
:	English

:	440
:	Wasserzeichen/DRM
:	PC/MAC/eReader/Tablet
:	PDF

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.

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