The Interstellar Medium (ISM)

The interstellar medium is the material that lies between the stars in a galaxy. This material can exist in several phases with a wide range in temperature (from tens of degrees to tens of millions of degrees Kelvin). In the coldest regions the material consists of molecular gas and dust; in the hottest regions the material is almost completely ionized.

A few ISM links:

• The Role of the Interstellar Magnetic Field A. Goodman
• The Diffuse ISM & High-Latitude Clouds A. Goodman
• Mapping out Dust in the Dense ISM A. Goodman
• Astonomy HyperText Book: Interstellar Medium by The Electronic Universe Project
• The Interstellar Medium: An Online Tutorial
• The Local Interstellar Medium

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