Soft X-Ray Emissions from Planets and Moons
- Ostgaard, N.
- Physical Description:
- 1 electronic document
- Additional Creators:
- Maurellis, A., Waite, J. H., Jr., Metzger, A. E., Bhardwaj, A., Cravens, T. E., Elsner, R. F., Six, N. Frank, Grodent, D., Gladstone, G. R., and Howell, R. R.
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- Unclassified, Unlimited, Publicly available.
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- A wide variety of solar system planetary bodies are now known to radiate in the soft x-ray energy (<5 keV) regime. These include planets (Earth, Jupiter, Venus, Saturn): bodies having thick atmosphere and with/without intrinsic magnetic field; planetary satellites (Moon, Io, Europa, Ganymede): bodies with no/thin atmosphere; and comets and Io plasma torus: bodies having extended tenuous atmosphere. Several different mechanisms have been proposed to explain the generation of soft x-rays from these objects. whereas in the hard x-ray energy range (>10 keV) x-rays mainly result from electron bremsstrahlung process. In this paper we present a brief review of the x-ray observations on each of the planetary bodies and discuss their characteristics and proposed source mechanisms.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 20020066766.
ESLAB 36: "Earth-like Planets and Moons" Conference; 3-8 Jun. 2002; Noordwijk; Netherlands.
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