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The cosmic dust analyser onboard cassini: ten years of discoveries

Srama, R. and Kempf, S. and Moragas-Klostermeyer, S. and Altobelli, N. and Auer, S. and Beckmann, U. and Bugiel, S. and Burton, M. and Economomou, T. and Fechtig, H. and Fiege, K. and Green, S.F. and Grande, M. and Havnes, O. and Hillier, J.K. and Helfert, S. and Horanyi, M. and Hsu, S. and Igenbergs, E. and Jessberger, E.K. and Johnson, T.V. and Khalisi, E. and Krüger , H. and Matt, G. and Mocker, A. and Lamy, P. and Linkert, G. and Lura, F. and Möhlmann, D. and Morfill, G.E. and Otto, K. and Postberg, F. and Roy, M. and Schmidt, J. and Schwehm, G.H. and Spahn, G. and Sterken, V. and Svestka, J. and Tschernjawski, V. and Grün, E. and Röser, H.-.P. (2011) The cosmic dust analyser onboard cassini: ten years of discoveries. CEAS Space Journal, 2 (1-4), pp. 3-16. Springer. DOI: 10.1007/s12567-011-0014-x

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Abstract

The interplanetary space probe Cassini/Huygens reached Saturn in July 2004 after 7 years of cruise phase. The German cosmic dust analyser (CDA) was developed under the leadership of the Max Planck Institute for Nuclear Physics in Heidelberg under the support of the DLR e.V. This instrument measures the interplanetary, interstellar and planetary dust in our solar system since 1999 and provided unique discoveries. In 1999, CDA detected interstellar dust in the inner solar system followed by the detection of electrical charges of interplanetary dust grains during the cruise phase between Earth and Jupiter. The instrument determined the composition of interplanetary dust and the nanometre-sized dust streams originating from Jupiter’s moon Io. During the approach to Saturn in 2004, similar streams of submicron grains with speeds in the order of 100 km/s were detected from Saturn’s inner and outer ring system and are released to the interplanetary magnetic field. Since 2004 CDA measured more than one million dust impacts characterising the dust environment of Saturn. The instrument is one of the three experiments which discovered the active ice geysers located at the south pole of Saturn’s moon Enceladus in 2005. Later, a detailed compositional analysis of the water ice grains in Saturn’s E ring system led to the discovery of large reservoirs of liquid water (oceans) below the icy crust of Enceladus. Finally, the determination of the dust-magnetosphere interaction and the discovery of the extended E ring (at least twice as large as predicted) allowed the definition of a dynamical dust model of Saturn’s E ring describing the observed properties. This paper summarizes the discoveries of a 10-year story of success based on reliable measurements with the most advanced dust detector flown in space until today. This paper focuses on cruise results and findings achieved at Saturn with a focus on flux and density measurements. CDA discoveries related to the detailed dust stream dynamics, E ring dynamics, its vertical profile and E ring compositional analysis are published elsewhere (see Hus et al. in AIP Conference Proccedings 1216:510–513, 2010; Hsu et al. in Icarus 206:653–661, 2010; Kempf et al. in Icarus 193:420, 2008; 206(2):446, 2010; Postberg et al. in Icarus 193(2):438, 2008; Nature 459:1098, 2009; Nature, 2011, doi:10.1038/nature10175).

Item URL in elib:https://elib.dlr.de/71217/
Document Type:Article
Additional Information:Bisher nur online erschienen.
Title:The cosmic dust analyser onboard cassini: ten years of discoveries
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Srama, R.Max-Planck-Institut für Kernphysik, Heidelberg; UNSPECIFIED
Kempf, S.Max-Planck-Institut für Kernphysik, Heidelberg; Universität Braunschweig, Brunswick, Germany; LASP/Universität Colorado, Boulder, USAUNSPECIFIED
Moragas-Klostermeyer, S.Max-Planck-Institut für Kernphysik, HeidelbergUNSPECIFIED
Altobelli, N.ESAC, Madrid, SpainUNSPECIFIED
Auer, S.A & M Associates, Basye, USAUNSPECIFIED
Beckmann, U.MPS, Katlenburg-Lindau, GermanyUNSPECIFIED
Bugiel, S. Max-Planck-Institut für Kernphysik, Heidelberg; IRS, Universität Stuttgart, Stuttgart, GermanyUNSPECIFIED
Burton, M.JPL, Pasadena, USAUNSPECIFIED
Economomou, T.Universität Chicago, Chicago, USAUNSPECIFIED
Fechtig, H.Max-Planck-Institut für Kernphysik, HeidelbergUNSPECIFIED
Fiege, K.Max-Planck-Institut für Kernphysik, Heidelberg; Universität Braunschweig, Brunswick, GermanyUNSPECIFIED
Green, S.F.Open University, Milton Keynes, UKUNSPECIFIED
Grande, M.University of Wales, Aberystwyth, Aberystwyth, UKUNSPECIFIED
Havnes, O.Universität Tromso, Tromso, NorwayUNSPECIFIED
Hillier, J.K.Universität Heidelberg, Heidelberg, GermanyUNSPECIFIED
Helfert, S.Helfert Informatik GmbH & Co KG, Mannheim, GermanyUNSPECIFIED
Horanyi, M.LASP/Universität Colorado, Boulder, USAUNSPECIFIED
Hsu, S.Max-Planck-Institut für Kernphysik, Heidelberg; LASP/Universität Colorado, Boulder, USAUNSPECIFIED
Igenbergs, E.Universität München, Munich, GermanyUNSPECIFIED
Jessberger, E.K.Universität Münster, Munster, GermanyUNSPECIFIED
Johnson, T.V.JPL, Pasadena, USAUNSPECIFIED
Khalisi, E.Max-Planck-Institut für Kernphysik, HeidelbergUNSPECIFIED
Krüger , H.MPS, Katlenburg-Lindau, GermanyUNSPECIFIED
Matt, G.Max-Planck-Institut für Kernphysik, HeidelbergUNSPECIFIED
Mocker, A.Max-Planck-Institut für Kernphysik, Heidelberg; IRS, Universität Stuttgart, Stuttgart, GermanyUNSPECIFIED
Lamy, P.LAS, Marseille, FranceUNSPECIFIED
Linkert, G.Max-Planck-Institut für Kernphysik, HeidelbergUNSPECIFIED
Lura, F.franz.lura (at) dlr.deUNSPECIFIED
Möhlmann, D.dirk.moehlmann (at) dlr.deUNSPECIFIED
Morfill, G.E.MPE, Garching, GermanyUNSPECIFIED
Otto, K.LASP/Universität Colorado, Boulder, USAUNSPECIFIED
Postberg, F.Max-Planck-Institut für Kernphysik, Heidelberg; IRS, Universität Stuttgart, Stuttgart, GermanyUNSPECIFIED
Roy, M.JPL, Pasadena, USAUNSPECIFIED
Schmidt, J.Universität Potsdam, Potsdam, GermanyUNSPECIFIED
Schwehm, G.H.A & M Associates, Basye, USAUNSPECIFIED
Spahn, G.Universität Potsdam, Potsdam, GermanyUNSPECIFIED
Sterken, V.Max-Planck-Institut für Kernphysik, Heidelberg; Universität Braunschweig, Brunswick, GermanyUNSPECIFIED
Svestka, J.Prag Observatorium, Prague 23, Czech RepublicUNSPECIFIED
Tschernjawski, V.DLRUNSPECIFIED
Grün, E.Max-Planck-Institut für Kernphysik, Heidelberg; LASP/Universität Colorado, Boulder, USAUNSPECIFIED
Röser, H.-.P.IRS, Universität Stuttgart, Stuttgart, GermanyUNSPECIFIED
Date:2011
Journal or Publication Title:CEAS Space Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:2
DOI :10.1007/s12567-011-0014-x
Page Range:pp. 3-16
Publisher:Springer
Status:Published
Keywords:Cosmic dust analyser – Cassini – CDA – Interplanetary dust – Interstellar dust – Planetary ring – E ring – Enceladus – Cosmochemistry – Saturn – Water ice – Geyser – Impact ionisation – PVDF
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben CASSINI (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Space Systems > Systemkonditionierung
Institute of Planetary Research
Deposited By: Pieth, Susanne
Deposited On:03 Nov 2011 13:14
Last Modified:26 Mar 2013 13:31

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