Molecular collisions in the interstellar medium星际物质的分子碰撞
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作者： David Flower著
出 版 社：
出版时间： 2007-4-1字数：版次： 1页数： 187印刷时间： 2007/04/01开本： 16开印次： 1纸张： 胶版纸I S B N ： 9780521844833包装： 精装内容简介
In the interstellar medium - the space between the stars in galaxies - new stars are born from material that is replenished by the debris ejected by stars when they die. This book is a comprehensive manual for studying the collisional and radiative processes observed in the interstellar medium. This second edition has been thoroughly updated and extended to cover related topics in radiation theory. It considers the chemistry of the interstellar medium both at the present epoch and in the early Universe, and discusses the physics and chemistry of shock waves. The methods of calculation of the rates of collisional excitation of interstellar molecules and atoms are explained, emphasising the quantum mechanical method. This book will be ideal for researchers involved in the interstellar medium and star formation, and physical chemists specialising in collision theory or in the measurement of the rates of collision processes.
目录
1 Interstellar molecules
1.1 Introduction
1.2 Chemistry in interstellar clouds
1.3 Chemical bistability in dense clouds
2 Interstellar shocks and chemistry
2.1 Introduction
2.2 The MHD conservation equations
2.3 The structure of interstellar shock waves
2.4 Shock waves in dark clouds
2.5 Shock waves in diffuse clouds
3 The primordial gas
3.1 Introduction
3.2 The governing equations
3.3 The role of molecules
3.4 Chemistry
3.5 Gravitational collapse
4 The rotational excitation of molecules
4.1 Introduction
4.2 The Born-Oppenheimer approximation
4.3 The scattering of an atom by a rigid rotator
4.4 The rotational excitation of non-linear molecules
5 The vibrational excitation of linear molecules
5.1 Introduction
5.2 The scattering of an atom by a vibrating rotor
5.3 Excitation of H2 and HD in collisions with H2 molecules
5.4 Cooling functions
6 The excitation of fine structure transitions
6.1 Introduction
6.2 Theory of fine structure excitation processes
7 Radiative transfer in molecular lines
7.1 Introduction
7.2 The radiative transfer equation
7.3 The OH radical
7.4 Producing population inversion
7.5 Rotational excitation of OH by H2
8 Charge transfer processes
8.1 Introduction
8.2 The Landau-Zener model
8.3 The 'orbiting' model
8.4 The quantum mechanical model
8.5 Selective population of excited states
9 Electron collisions
9.1 Introduction
9.2 Selection rules and LS-coupling
9.3 Electron collisional excitation
9.4 Resonances
9.5 Forbidden line emission from Herbig-Haro objects
10 Photon collisions
10.1 Introduction
10.2 The oscillator strength
10.3 The transition probability
10.4 Photoionization and radiative recombination
10.5 Radiative transitions in molecules
Appendix 1 The atomic system of units
Appendix 2 Reaction rate coefficients
References
Index
