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The colours of the interstellar medium

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On the basis ofI-I plots, we find that the ISM radiates preferentially at two pairs of far-infrared frequencies which correspond to (scattered) black-body temperatures of (23 ± 1, 187 ± 5) K and (39 ± 1, 104 ± 5) K. The first pair is emitted by the cold matrix, the second pair byHii regions and supernova shells.

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Müller, P., Kundt, W. The colours of the interstellar medium. Astrophys Space Sci 155, 153–161 (1989).

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  • Colour
  • Interstellar Medium
  • Supernova Shell
  • Cold Matrix