Lyman - A new window on the universe

Details Lyman - A new window on the universe Lyman - A new window on the universe

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esabu..55...12j&link_type=abstract

ESA Bulletin (ISSN 0376-4265), no. 55, Aug. 1988, p. 12-17.

Astronomy and Astrophysics

Astronomy

1

Astronomical Spectroscopy, Faint Objects, Lyman Spectra, Planetary Atmospheres, Stellar Atmospheres, Ultraviolet Astronomy, Hydrogen Atoms, Interstellar Matter, Quantum Theory

Scientific paper

The proposed Lyman mission for spectroscopic study of faint astronomical objects in the 90-120 mm UV range is discussed. The operational mission is outlined and the design of the observatory facility is illustrated. The mission would carry a grazing-incidence telescope, a dual-echelle prime spectrograph, and far- and extreme-UV spectrographs. Topics which the mission would study include the deuterium abundance in local galaxies and galactic halos, the evolution and nature of hot galactic halos, starburst galaxies, cooling flows in galactic clusters, the gas phase structure of interstellar medium, composition of interstellar dust grains, stellar winds of Population I stars, physics of premain-sequence stars, novae, and supernovae, planetary atmospheres, the photochemistry of comets, and planetary nebulae in local galaxies.

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