Molecules in galaxies

  title={Molecules in galaxies},
  author={Alain Omont},
  journal={Reports on Progress in Physics},
  • A. Omont
  • Published 22 June 2007
  • Physics, Chemistry
  • Reports on Progress in Physics
The main achievements, current developments and prospects of molecular studies in external galaxies are reviewed. They are put in the context of the results of several decades of studies of molecules in the local interstellar medium, their chemistry and their importance for star formation. CO observations have revealed the gross structure of molecular gas in galaxies. Together with other molecules, they are among the best tracers of star formation at galactic scales. Our knowledge about… 

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