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Dust Measurements at High Ecliptic Latitudes

Along Ulysses' path from Jupiter to the south ecliptic pole, the onboard dust detector measured a dust impact rate that varied slowly from 0.2 to 0.5 impacts per day. The dominant component of the dust flux arrived from an ecliptic latitude and longitude of 10° ± 10° and 280° ± 30° which indica...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1995-05, Vol.268 (5213), p.1016-1019
Main Authors: Baguhl, M., Hamilton, D. P., Grün, E., Dermott, S. F., Fechtig, H., Hanner, M. S., Kissel, J., B.-A. Lindblad, Linkert, D., Linkert, G., Mann, I., McDonnell, J. A. M., Morfill, G. E., Polanskey, C., Riemann, R., Schwehm, G., Staubach, P., Zook, H. A.
Format: Article
Language:English
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Summary:Along Ulysses' path from Jupiter to the south ecliptic pole, the onboard dust detector measured a dust impact rate that varied slowly from 0.2 to 0.5 impacts per day. The dominant component of the dust flux arrived from an ecliptic latitude and longitude of 10° ± 10° and 280° ± 30° which indicates an interstellar origin. An additional flux of small particles, which do not come from the interstellar direction and are unlikely to be zodiacal dust grains, appeared south of -45° latitude. One explanation is that these particles are beta-meteoroids accelerated away from the sun by radiation pressure and electromagnetic forces.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.268.5213.1016