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Two years of observation with the international ultraviolet explorer
Lamers, H. J. G. L. M.; de Jager, C.
The launching of I.U.E., in January 1978, has provided the astronomical community with a powerful observatory-type spacecraft enabling one a practically continuous observation of ultra-violet spectra of celestial bodies. Two years of operation have led to many new developments, in which a large number of astronomers participated. This review summa…
Ultraviolet emissions from the upper atmospheres of the planets
Moos, H. W.
A large number of atoms and molecules have strong emission lines in the vacuum ultraviolet. As a result, this spectral region is particularly suited to studying the upper atmospheres of the planets. The observed emissions not only identify the constituents, but also provide information on the solar and magnetospheric excitation processes. Long ter…