An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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transauroral line
  خط ِ ترا-اوشه‌ای  
xatt-e tarâ-uše-yi
Fr.: raie transaurorale  

A forbidden line emitted by interstellar ionized gas by several atomic species (O, O+, O++, N+, S++, etc.) corresponding to the transition from the electronic state 1S to 3P.
Examples are the ultraviolet line of the doubly ionized oxygen
[O III] at 2321 A and [N II] 3063 A. → auroral line;
→ forbidden line; → nebular line.

See also: → trans-; → auroral line.