Advertisement

Line Emission Processes

  • Michael A. Dopita
  • Ralph S. Sutherland
Part of the Astronomy and Astrophysics Library book series (AAL)

Abstract

In this chapter, we will review the sometimes arcane, frequently confusing, notations that are used to classify atomic and molecular transitions and spectra. A basic understanding of these is essential, since it is through the atomic and molecular lines that we ultimately derive our understanding about the physical conditions in, and chemical abundances of, diffuse astrophysical plasmas. In what follows, we will assume that the reader is familiar with the basic concepts of quantum mechanics. If not, the reader is referred to the highly readable account of this and other topics in modern physics which is in the book by Rohlf (1994). Also, a lucid introduction to molecular spectroscopy is given by Atkins (1983); see notes on this chapter.

Keywords

Angular Momentum Selection Rule Orbital Angular Momentum Vibrational Level Diatomic Molecule 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Michael A. Dopita
    • 1
  • Ralph S. Sutherland
    • 1
  1. 1.Research School of Astronomy and AstrophysicsThe Australian National UniversityCanberraAustralia

Personalised recommendations