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Title:
Discovery of high-ionization far-ultraviolet line emission from the interstellar medium
Authors:
Martin, Christopher; Bowyer, Stuart
Affiliation:
AA(California, University, Berkeley), AB(California, University, Berkeley)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 350, Feb. 10, 1990, p. 242-261. (ApJ Homepage)
Publication Date:
02/1990
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Emission Spectra, Far Ultraviolet Radiation, Interstellar Matter, Line Spectra, Carbon, Hydrogen Clouds, Oxygen Spectra, Ultraviolet Spectra
DOI:
10.1086/168376
Bibliographic Code:
1990ApJ...350..242M

Abstract

Diffuse, highly ionized line emission from the 1550 lines of C IV and the 1663 lines of O II was discovered on Space Shuttle mission 61-C. The emission-lines ratios are consistent with a single temperature in most directions, although there is some evidence that the emission results from gas with a nonequilibrium ionization balance and a distribution of temperatures. It is concluded that the observation of UV emission is consistent only with a galactic fountain model with a fountain having a mass flux of 6-25 solar mass/yr and a luminosity of (2.5-13) X 10 to the 40th ergs/s.

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