RRLs and Atomic Physics

  • M.A. GordonEmail author
  • R.L. Sorochenko
Part of the Astrophysics and Space Science Library book series (ASSL, volume 282)


This chapter derives the physics ab initio that underlie the formation of radio recombination lines in astronomical objects. It includes natural, thermal, and pressure broadening of the spectral lines; the radiation transfer of the spectra and their underlying free–free emission (Bremsstrahlung) through the ionized media; the excitation of the atomic levels; the frequency range over which lines may be detected from astronomical objects; and the sizes of excited atoms that can exist within interstellar environments.


Wave Train Quantum Level Radio Telescope Inelastic Collision Local Thermodynamic Equilibrium 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.NARONational Radio Astronomy Observatory TucsonTucsonAZ 857521-0655
  2. 2.Russian Academy of SciencesP.N. Lebedev Physical InstituteMoskva

Personalised recommendations