Optical measurement of interplanetary particulates from Pioneer 10
| Autor: | R. K. Soberman, K. Lichtenfeld, S. L. Neste |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
Physics
Atmospheric Science Brightness Zodiacal light Ecology Meteoroid Gegenschein Paleontology Soil Science Interplanetary medium Forestry Astrophysics Aquatic Science Oceanography Geophysics Distribution function Space and Planetary Science Geochemistry and Petrology Physics::Space Physics Particle-size distribution Earth and Planetary Sciences (miscellaneous) Particle Astrophysics::Earth and Planetary Astrophysics Earth-Surface Processes Water Science and Technology |
| Zdroj: | Journal of Geophysical Research. 79:3685-3694 |
| ISSN: | 0148-0227 |
| DOI: | 10.1029/ja079i025p03685 |
| Popis: | The spatial concentration and size distribution for particulates measured in situ by the asteroid/meteoroid detector on Pioneer 10 between 1.0 and 3.5 AU are presented. The size distribution includes particles of radii from about 35 microns to 10 cm. Extrapolation from the smallest particle sizes measured shows good agreement with the results of the particle penetration detector carried on the same spacecraft. Within the uncertainties of this experiment, a single size distribution seems appropriate for all but the smallest particles measured. There is evidence for the existence of a planetary sweeping effect in the vicinity of the Mars orbit. As calculated from the particle spatial distribution, the zodiacal light brightness is found to vary approximately as the inverse square of solar distance out to about 2.25 AU and then decrease more rapidly. The absolute value of the zodiacal light brightness as calculated from the particle spatial concentration is found to be too high by a factor of 10. |
| Databáze: | OpenAIRE |
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