Computer Science
Scientific paper
Jan 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ldef.symp..585l&link_type=abstract
In NASA. Langley Research Center, LDEF: 69 Months in Space. First Post-Retrieval Symposium, Part 1 p 585-594 (SEE N92-23280 14-9
Computer Science
Collection, Interstellar Gas, Long Duration Exposure Facility, Metal Foils, Neutral Gases, Penetration, Spectroscopic Analysis, Entrapment, Helium Isotopes, Neon Isotopes, Rare Gases, Solar System, Sun, Trapped Particles
Scientific paper
The Interstellar Gas Experiment (IGE) exposed thin metallic foils to collect neutral interstellar gas particles. These particles penetrate the solar system due to their motion relative to the sun. Thus, it is possible to entrap them in the collecting foils along with precipitating magnetospheric and perhaps some ambient atmospheric particles. For the entire duration of the Long Duration Exposure Facility (LDEF) mission, seven of these foils collected particles arriving from seven different directions as seen from the spacecraft. In the mass spectroscopic analysis of the noble gas component of these particles, we have detected the isotopes of He-3, He-4, Ne-20, and Ne-22. In the foil analyses carried out so far, we find a distribution of particle arrival directions which shows that a significant part of the trapped particles are indeed interstellar atoms. The analysis needed to subtract the competing fluxes of magnetospheric and atmospheric particles is still in progress.
Buehler Fritz
Eugster Otto
Geiss Johannes
Lind D. L.
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