Abstract
Ultraviolet radiation in absorption and emission provides diagnostics of interstellar and intergalactic matter. After reviewing some basic physical reasons for the importance of UV astronomy, the UV observations of both media, the future uses of high resolution spectrometers in the far UV, and the atomic data required for proper interpretation are discussed. Satellite UV observations have the potential of answering fundamental questions dealing with the nature of the gaseous matter in the outer regions of our galaxy, in neighboring galaxies, and in the intergalactic matter seen in quasar absorption spectra.
© 1980 Optical Society of America
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Quasars
Harlan J. Smith
Appl. Opt. 5(11) 1701-1719 (1966)
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