Interstellar Molecules and Dense Clouds

@article{Rank1971InterstellarMA,
  title={Interstellar Molecules and Dense Clouds},
  author={David M. Rank and Charles H. Townes and William J. Welch},
  journal={Science},
  year={1971},
  volume={174},
  pages={1083 - 1101}
}
Current knowledge of the interstellar medium is discussed on the basis of recent published studies. The subjects considered include optical identification of interstellar molecules, radio molecular lines, interstellar clouds, isotopic abundances, formation and disappearance of interstellar molecules, and interstellar probing techniques. Diagrams are plotted for the distribution of galactic sources exhibiting molecular lines, for hydrogen molecule, hydrogen atom and electron abundances due to… 
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