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Helium in the Martian atmosphere
- Source :
- Journal of Geophysical Research. 98(E8)
- Publication Year :
- 1993
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1993.
-
Abstract
- A crude estimate for the current degassing rate of He-4 on of 2.2 x 10 exp 5/sq cm/s is obtained by scaling from the amounts of helium and argon on earth. Nonthermal escape processes of helium on Mars are discussed and a nonthermal helium escape rate is calculated for each process. The helium mixing ratio in the lower Martian atmospheres and the intensity of its airglow at 584 A are calculated.
- Subjects :
- Lunar And Planetary Exploration
Subjects
Details
- Language :
- English
- ISSN :
- 01480227
- Volume :
- 98
- Issue :
- E8
- Database :
- NASA Technical Reports
- Journal :
- Journal of Geophysical Research
- Notes :
- NAG5-665
- Publication Type :
- Report
- Accession number :
- edsnas.19940033485
- Document Type :
- Report