Molecular collisions in the interstellar medium /

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, first published in 2007, is a comprehensive manual for studying the collisional and radiative processes observed in the...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Flower, D. R. (David Roger), 1945-
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Cambridge, UK ; New York : Cambridge University Press, 2007.
Edición:2nd ed.
Colección:Cambridge astrophysics series ; 42.
Temas:
Interstellar matter.
Molecular dynamics.
Molecular astrophysics.
Matière interstellaire.
Dynamique moléculaire.
Astrophysique moléculaire.
SCIENCE > Cosmology.
Acceso en línea:Texto completo
Tabla de Contenidos:
  • 1 Interstellar molecules 1
  • 1.2 Chemistry in interstellar clouds 3
  • 1.3 Chemical bistability in dense clouds 9
  • 2 Interstellar shocks and chemistry 12
  • 2.2 The MHD conservation equations 13
  • 2.3 The structure of interstellar shock waves 21
  • 2.4 Shock waves in dark clouds 29
  • 2.5 Shock waves in diffuse clouds 33
  • 3 The primordial gas 36
  • 3.2 The governing equations 36
  • 3.3 The role of molecules 39
  • 3.4 Chemistry 42
  • 3.5 Gravitational collapse 44
  • 4 The rotational excitation of molecules 49
  • 4.2 The Born-Oppenheimer approximation 49
  • 4.3 The scattering of an atom by a rigid rotator 52
  • 4.4 The rotational excitation of non-linear molecules 69
  • 5 The vibrational excitation of linear molecules 82
  • 5.2 The scattering of an atom by a vibrating rotor 82
  • 5.3 Excitation of H[subscript 2] and HD in collisions with H[subscript 2] molecules 92
  • 5.4 Cooling functions 93
  • 6 The excitation of fine structure transitions 98
  • 6.2 Theory of fine structure excitation processes 99
  • 7 Radiative transfer in molecular lines 118
  • 7.2 The radiative transfer equation 119
  • 7.3 The OH radical 124
  • 7.4 Producing population inversion 128
  • 7.5 Rotational excitation of OH by H[subscript 2] 129
  • 8 Charge transfer processes 139
  • 8.2 The Landau-Zener model 140
  • 8.3 The 'orbiting' model 143
  • 8.4 The quantum mechanical model 145
  • 8.5 Selective population of excited states 151
  • 9 Electron collisions 153
  • 9.2 Selection rules and LS-coupling 154
  • 9.3 Electron collisional excitation 156
  • 9.4 Resonances 158
  • 9.5 Forbidden line emission from Herbig-Haro objects 161
  • 10 Photon collisions 163
  • 10.2 The oscillator strength 163
  • 10.3 The transition probability 165
  • 10.4 Photoionization and radiative recombination 166
  • 10.5 Radiative transitions in molecules 169
  • Appendix 1 The atomic system of units 172
  • Appendix 2 Reaction rate coefficients 173.

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