Cassini between Venus and Earth: Detection of interstellar dust

Altobelli N, Kempf S, Landgraf M, Srama R, Dikarev V, Kruger II, Moragas-Klostermeyer G, Grun E (2003)
Journal of Geophysical Research 108(A10): LIS 7-1-LIS 7-9.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Altobelli, N; Kempf, S; Landgraf, M; Srama, R; Dikarev, ValeryUniBi; Kruger, II; Moragas-Klostermeyer, G; Grun, E
Abstract / Bemerkung
[1] We report the successful in situ measurement of interstellar dust particles inside the orbit of the Earth with the Cosmic Dust Analyzer (CDA) on the Cassini spacecraft. The impact ionization subsystem of the CDA is similar to the instruments on Ulysses and Galileo. As the heliocentric velocity and the direction of the interstellar dust flux are well known from Ulysses measurements, a combined analysis of the impact charge signals together with geometric and kinematic spacecraft data allowed us to separate interplanetary impacts from interstellar ones. The mean interstellar flux between 0.7 and 1.2 AU derived from our analysis is 2.5 +/- 0.5 . 10(-5) m(-2) s(-1), in a mass range of 5 . 10(-17) kg to 10(-15) kg which is in good agreement with the interstellar dust flux measured by Ulysses at 3 AU during the same time period [Landgraf et al., 2003]. The simultaneous detection of interstellar grains by Ulysses at 3 AU and approximately 1 AU by Cassini proves that big interstellar grains (radius greater than 0.4 mum), can penetrate deeply into the inner solar system.
Stichworte
into solar system; penetration of interstellar dust; interstellar dust with heliosphere; interaction of; interstellar dust; Cassini Dust Analyser (CDA); in situ detection of dust
Erscheinungsjahr
2003
Zeitschriftentitel
Journal of Geophysical Research
Band
108
Ausgabe
A10
Seite(n)
LIS 7-1-LIS 7-9
ISSN
0148-0227
Page URI
https://pub.uni-bielefeld.de/record/2322777

Zitieren

Altobelli N, Kempf S, Landgraf M, et al. Cassini between Venus and Earth: Detection of interstellar dust. Journal of Geophysical Research. 2003;108(A10):LIS 7-1-LIS 7-9.
Altobelli, N., Kempf, S., Landgraf, M., Srama, R., Dikarev, V., Kruger, I. I., Moragas-Klostermeyer, G., et al. (2003). Cassini between Venus and Earth: Detection of interstellar dust. Journal of Geophysical Research, 108(A10), LIS 7-1-LIS 7-9. https://doi.org/10.1029/2003JA009874
Altobelli, N, Kempf, S, Landgraf, M, Srama, R, Dikarev, Valery, Kruger, II, Moragas-Klostermeyer, G, and Grun, E. 2003. “Cassini between Venus and Earth: Detection of interstellar dust”. Journal of Geophysical Research 108 (A10): LIS 7-1-LIS 7-9.
Altobelli, N., Kempf, S., Landgraf, M., Srama, R., Dikarev, V., Kruger, I. I., Moragas-Klostermeyer, G., and Grun, E. (2003). Cassini between Venus and Earth: Detection of interstellar dust. Journal of Geophysical Research 108, LIS 7-1-LIS 7-9.
Altobelli, N., et al., 2003. Cassini between Venus and Earth: Detection of interstellar dust. Journal of Geophysical Research, 108(A10), p LIS 7-1-LIS 7-9.
N. Altobelli, et al., “Cassini between Venus and Earth: Detection of interstellar dust”, Journal of Geophysical Research, vol. 108, 2003, pp. LIS 7-1-LIS 7-9.
Altobelli, N., Kempf, S., Landgraf, M., Srama, R., Dikarev, V., Kruger, I.I., Moragas-Klostermeyer, G., Grun, E.: Cassini between Venus and Earth: Detection of interstellar dust. Journal of Geophysical Research. 108, LIS 7-1-LIS 7-9 (2003).
Altobelli, N, Kempf, S, Landgraf, M, Srama, R, Dikarev, Valery, Kruger, II, Moragas-Klostermeyer, G, and Grun, E. “Cassini between Venus and Earth: Detection of interstellar dust”. Journal of Geophysical Research 108.A10 (2003): LIS 7-1-LIS 7-9.
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