Abstract
Interstellar dust was first identified by the dust sensor onboard Ulysses after the Jupiter flyby in February 1992. These findings were confirmed by the Galileo experiment on its outbound orbit from Earth to Jupiter. Although modeling results show that interstellar dust is also present at the Earth orbit, a direct identification of interstellar grains from geometrical arguments is only possible outside of 2.5 AU. The flux of interstellar dust with masses greater than 6 · 10-14 g is about 1 · 10-4 m -2 s -1 at ecliptic latitudes and at heliocentric distances greater than 1AU. The mean mass of the interstellar particles is 3 · 10-13 g. The flux arrives from a direction which is compatible with the influx direction of the interstellar neutral Helium of 252° longitude and 5.2° latitude but it may deviate from this direction by 15–20°.
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Baguhl, M., Grün, E., Landgraf, M. (1996). In Situ Measurements of Interstellar Dust with the Ulysses and Galileo Spaceprobes. In: Von Steiger, R., Lallement, R., Lee, M.A. (eds) The Heliosphere in the Local Interstellar Medium. Space Science Series of ISSI, vol 1. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1782-8_18
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DOI: https://doi.org/10.1007/978-94-009-1782-8_18
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