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Fluctuations of the Interstellar Medium

  • B. M. Deiss
Conference paper
Part of the Reviews in Modern Astronomy book series (MOD.ASTRONOMY, volume 3)

Abstract

One of the outstanding features of the interstellar medium is its extreme inhomogeneity. Strong small-scale variations of the column density and mean radial velocity., doppler-broadened spectral lines partly consisting of several distinct (velocity-) components all indicate that the ISM is in a highly disordered state on small scales. The smallest structures currently observed in molecular clouds are of the order of a tenth of a parsec. This lower limit seems to be determined only by the resolution of the observational instruments. Thus in considering the dynamics of the ISM on a given scale one nearly always finds fluctuations within the scale.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • B. M. Deiss
    • 1
  1. 1.Institut für Theoretische PhysikJ.W. Goethe UniversitätFrankfurtFed. Rep. of Germany

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