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Galileo dust data f...
Galileo dust data from the jovian system: 1997-1999
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Krueger, H. (author)
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Bindschadler, D. (author)
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Dermott, S. F. (author)
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Graps, A. L. (author)
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Gruen, E. (author)
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Gustafson, B. A. (author)
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Hamilton, D. P. (author)
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Hanner, M. S. (author)
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Horanyi, M. (author)
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Kissel, J. (author)
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- Lindblad, Bertil Anders (author)
- Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science
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Linkert, D. (author)
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Linkert, G. (author)
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Mann, I. (author)
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McDonnell, J. A. M. (author)
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Moissl, R. (author)
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Morfill, G. E. (author)
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Polanskey, C. (author)
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Schwehm, G. (author)
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Srama, R. (author)
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Zook, H. A. (author)
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(creator_code:org_t)
- Elsevier BV, 2006
- 2006
- English.
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In: Planetary and Space Science. - : Elsevier BV. - 1873-5088 .- 0032-0633. ; 54:9-10, s. 879-910
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http://dx.doi.org/10...
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Abstract
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- The dust detector system on board the Galileo spacecraft recorded dust impacts in circumjovian space during the craft's orbital mission about Jupiter. This is the eighth in a series of papers dedicated to presenting Galileo and Ulysses dust data. We present data from the Galileo dust instrument for the period January 1997-December 1999 when the spacecraft completed 21 revolutions about Jupiter. In this time interval data were obtained as high resolution realtime science data or recorded data during 449 days (representing 41% of the entire period), or via memory readouts during the remaining times. Because the data transmission rate of the spacecraft was very low, the complete data set (i.e. all parameters measured by the instrument during impact of a dust particle) of only 3% (7625) of all particles detected could be transmitted to Earth; the other particles were only counted. Together with the data of 2883 particles detected during, Galileo's interplanetary cruise and 53 53 particles detected in the jovian system in 1996, complete data of 15 861 particles detected by the Galileo dust instrument from 1989 to 1999 are now available. The majority of the detected particles were tiny grains (about 10 nm in radius), most of them originating from Jupiter's innermost Galilean moon Io. They were detected throughout the jovian system and the highest impact rates exceeded 100 min(-1) (C21 orbit; 01 July 1999). With the new data set the times of onset, cessation and a 180 degrees shift in the impact direction of the grains measured during 19 Galileo orbits about Jupiter are well reproduced by simulated 9 nm particles charged up to a potential of +3 V, confirming earlier results obtained for only two Galileo orbits (Horanyi, M., Grun, E., Heck, A., 1997. Modeling the Galileo dust measurements at Jupiter. Geophys. Res. Lett. 24, 2175-2178). Galileo has detected a large number of bigger particles mostly in the region between the Galilean moons. The average radius of 370 of these grains measured in the 1996-1999 period is about 2 mu m (assuming spherical grains with density 1 g cm(-3)) and the size distribution rises steeply towards smaller grains. The biggest detected particles have a radius of about 10 mu m. (c) 2006 Elsevier Ltd. All rights reserved.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- dust streams
- interplanetary dust
- circumplanetary dust
- dust clouds
- Jupiter dust
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Krueger, H.
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Bindschadler, D.
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Dermott, S. F.
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Graps, A. L.
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Gruen, E.
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Gustafson, B. A.
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show more...
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Hamilton, D. P.
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Hanner, M. S.
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Horanyi, M.
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Kissel, J.
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Lindblad, Bertil ...
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Linkert, D.
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Linkert, G.
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Mann, I.
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McDonnell, J. A. ...
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Moissl, R.
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Morfill, G. E.
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Polanskey, C.
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Schwehm, G.
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Srama, R.
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Zook, H. A.
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show less...
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