Spacelab experiment: ALAE, Atmospheric Lyman-Alpha Emissions

Details Spacelab experiment: ALAE, Atmospheric Lyman-Alpha Emissions Spacelab experiment: ALAE, Atmospheric Lyman-Alpha Emissions

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980sppa.rept....1.&link_type=abstract

In its Space Plasma Phys. Active Expt. p 1-8 (SEE N81-14944 05-99)

Physics

Plasma Physics

Airglow, Experiment Design, Lyman Alpha Radiation, Plasma Physics, Space Plasmas, Spectrophotometers, Auroral Zones, Deuterium, Equatorial Atmosphere, Galactic Radiation, Interplanetary Medium, Neutral Gases, Polar Regions

Scientific paper

A spectrophotometer associated with two absorption cells, one filled with hydrogen and the other with deuterium, is described for use in studying various sources of Lyman-alpha emission in the atmosphere, in the interplanetary medium, and possibly in the galactic medium. As the result of charge exchange, Lyman-alpha emission is possibly present in auroral zones, equatorial zones, and at the foot of the polar cusp, where the solar wind interacts directly with the neutral atmosphere. Some emission is also expected from the plasma guns on board Spacelab. The use of the absorption cell is also a test for determining if the presence of geocoronal and interplanetary emission will prevent future astronomical observations of Lyman-alpha emissions.

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