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“ionization front”
ionization front
1. In astrophysics, a region in space in which the interstellar gas, commonly hydrogen, changes from a mostly neutral state to a mostly ionized situation, because of the ultraviolet radiation from hot stars nearby.
2. A transition region that separates interstellar gas in which a given atomic species, usually hydrogen, is mostly ionized from interstellar gas in which it is essentially neutral.
2. A transition region that separates interstellar gas in which a given atomic species, usually hydrogen, is mostly ionized from interstellar gas in which it is essentially neutral.
This entry is located in the following units:
-ation, -ization (-iz[e] + -ation); -isation (British spelling variation)
(page 57)
front-, fronto-
(page 3)
ion, ion- +
(page 7)