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Ultraviolet observations of Jupiter from Earth-orbiting satellites

Moore, V.

The International Ultraviolet Explorer (IUE) has provided both improved spectral resolution and some spatial resolution for UV observations of Jupiter. Previous satellite observations have produced albedo curves for Jupiter showing the influence of Rayleigh scattering, and of some absorber(s) shortward of 2500Å on the UV spectrum. Constraints on t…

A differential measurement of the Lyman alpha emission from the giant planets using IUE

Encrenaz, T.; Combes, M.; Fricke, K. H. +1 more

The intensity of the resonantly scattered Ly-α line of the gian planets depends on the scattering column length of atomic hydrogen above the methane layer and on the incident solar flux. We have obtained measurements of the Ly-α brightness of Jupiter and Saturn on December 19, 1979, with a time difference of 111 minutes, which is only slightly lon…

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…