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Amazing Light pp 295-305 | Cite as

Possibility of Infrared Coronal Line Laser Emission in Seyfert Nuclei

  • Matthew A. Greenhouse
  • Howard A. Smith
  • Uri Feldman

Abstract

Energetic emitting regions in astronomical sources have traditionally been studied via x-ray, UV, and optical emission lines of highly ionized intermediate mass elements. Such lines are often referred to as “coronal lines” since the ions, when produced by collisional ionization, reach maximum abundance at electron temperatures of ~ 105 — 106 K typical of the sun’s upper atmosphere. However, optical and UV coronal lines are also observed in a wide variety of Galactic and extra- galactic sources including the Galactic interstellar medium [2], nova shells [3,4], supernova remnants [5, 6, 7], galaxies and QSOs [8, 9, 10].

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Copyright information

© Springer-Verlag New York, Inc. 1996

Authors and Affiliations

  • Matthew A. Greenhouse
  • Howard A. Smith
  • Uri Feldman

There are no affiliations available

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