Titlebook: Dusty Objects in the Universe; Proceedings of the F E. Bussoletti,A. A. Vittone Conference proceedings 1990 Kluwer Academic Publishers 1990

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Search for the UV and IR Spectra of C6 0 in Laboratory-Produced Carbon Dusthe carbon dust were observed when the pressure of the quenching gas was increased. At low pressures (order 10 torr), the spectra show the familiar broad continua. At high pressures (order 100 torr), narrow lines in the IR and two (or possibly three) broad features in the UV emerge. The four stronges

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Circumstellar Dust Envelopes of M Giant Starsd of the IRAS M stars which show the emission band in LRS spectra are well explained by the model with dirty silicate grains. However, some additional grains which have no feature at 10 .m are required in order to explain the spectra of the M stars which do show no features or very weak band emissio

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S O F I An of the Solar System. Much of the radiant energy in the Universe lies at infrared wavelengths which are not observable from ground-based telescopes. SOFIA will provide ready and frequent access to these wavelengths with spatial and spectral resolutions which will be unmatched in this century.

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