TY - JOUR A1 - Thiessenhusen, Kai-Uwe A1 - Krueger, Harald A1 - Spahn, Frank A1 - Grün, Eberhard T1 - Large dust grains around Jupiter : the observations of the Galileo dust detector Y1 - 2000 ER - TY - JOUR A1 - Thiessenhusen, Kai-Uwe A1 - Krivov, Alexander V. A1 - Krüger, Harald A1 - Grün, Eberhard T1 - A dust cloud around Pluto and Charon Y1 - 2002 SN - 0032-0633 ER - TY - JOUR A1 - Thiessenhusen, Kai-Uwe A1 - Colwell, Josh E. A1 - Srama, Ralf A1 - Grün, Eberhard A1 - Spahn, Frank T1 - Dynamics of dust ejected from enceladus : application to the cassini dust detector Y1 - 1999 ER - TY - JOUR A1 - Srama, Ralf A1 - Krueger, H. A1 - Yamaguchi, T. A1 - Stephan, T. A1 - Burchell, M. A1 - Kearsley, A. T. A1 - Sterken, V. A1 - Postberg, F. A1 - Kempf, S. A1 - Grün, Eberhard A1 - Altobelli, Nicolas A1 - Ehrenfreund, P. A1 - Dikarev, V. A1 - Horanyi, M. A1 - Sternovsky, Zoltan A1 - Carpenter, J. D. A1 - Westphal, A. A1 - Gainsforth, Z. A1 - Krabbe, A. A1 - Agarwal, Jessica A1 - Yano, H. A1 - Blum, J. A1 - Henkel, H. A1 - Hillier, J. A1 - Hoppe, P. A1 - Trieloff, M. A1 - Hsu, S. A1 - Mocker, A. A1 - Fiege, K. A1 - Green, S. F. A1 - Bischoff, A. A1 - Esposito, F. A1 - Laufer, R. A1 - Hyde, T. W. A1 - Herdrich, G. A1 - Fasoulas, S. A1 - Jaeckel, A. A1 - Jones, G. A1 - Jenniskens, P. A1 - Khalisi, E. A1 - Moragas-Klostermeyer, Georg A1 - Spahn, Frank A1 - Keller, H. U. A1 - Frisch, P. A1 - Levasseur-Regourd, A. C. A1 - Pailer, N. A1 - Altwegg, K. A1 - Engrand, C. A1 - Auer, S. A1 - Silen, J. A1 - Sasaki, S. A1 - Kobayashi, M. A1 - Schmidt, J. A1 - Kissel, J. A1 - Marty, B. A1 - Michel, P. A1 - Palumbo, P. A1 - Vaisberg, O. A1 - Baggaley, J. A1 - Rotundi, A. A1 - Roeser, H. P. T1 - SARIM PLUS-sample return of comet 67P/CG and of interstellar matter JF - EXPERIMENTAL ASTRONOMY N2 - The Stardust mission returned cometary, interplanetary and (probably) interstellar dust in 2006 to Earth that have been analysed in Earth laboratories worldwide. Results of this mission have changed our view and knowledge on the early solar nebula. The Rosetta mission is on its way to land on comet 67P/Churyumov-Gerasimenko and will investigate for the first time in great detail the comet nucleus and its environment starting in 2014. Additional astronomy and planetary space missions will further contribute to our understanding of dust generation, evolution and destruction in interstellar and interplanetary space and provide constraints on solar system formation and processes that led to the origin of life on Earth. One of these missions, SARIM-PLUS, will provide a unique perspective by measuring interplanetary and interstellar dust with high accuracy and sensitivity in our inner solar system between 1 and 2 AU. SARIM-PLUS employs latest in-situ techniques for a full characterisation of individual micrometeoroids (flux, mass, charge, trajectory, composition()) and collects and returns these samples to Earth for a detailed analysis. The opportunity to visit again the target comet of the Rosetta mission 67P/Churyumov-Gerasimeenternko, and to investigate its dusty environment six years after Rosetta with complementary methods is unique and strongly enhances and supports the scientific exploration of this target and the entire Rosetta mission. Launch opportunities are in 2020 with a backup window starting early 2026. The comet encounter occurs in September 2021 and the reentry takes place in early 2024. An encounter speed of 6 km/s ensures comparable results to the Stardust mission. KW - Interstellar dust KW - Cometary dust KW - Churyumov Gerasimenko KW - Interplanetary dust KW - IMF KW - Cosmic vision KW - Sample return KW - Dust collector KW - Mass spectrometry Y1 - 2012 U6 - https://doi.org/10.1007/s10686-011-9285-7 SN - 0922-6435 SN - 1572-9508 VL - 33 IS - 2-3 SP - 723 EP - 751 PB - SPRINGER CY - DORDRECHT ER - TY - JOUR A1 - Srama, Ralf A1 - Ahrens, Thomas J. A1 - Altobelli, Nicolas A1 - Auer, S. A1 - Bradley, J. G. A1 - Burton, M. A1 - Dikarev, V. V. A1 - Economou, T. A1 - Fechtig, Hugo A1 - Görlich, M. A1 - Grande, M. A1 - Graps, Amara A1 - Grün, Eberhard A1 - Havnes, Ove A1 - Helfert, Stefan A1 - Horanyi, Mihaly A1 - Igenbergs, E. A1 - Jessberger, Elmar K. A1 - Johnson, T. V. A1 - Kempf, Sascha A1 - Krivov, Alexander v. A1 - Krüger, Harald A1 - Mocker-Ahlreep, Anna A1 - Moragas-Klostermeyer, Georg A1 - Lamy, Philippe A1 - Landgraf, Markus A1 - Linkert, Dietmar A1 - Linkert, G. A1 - Lura, F. A1 - McDonnell, J. A. M. A1 - Moehlmann, Dirk A1 - Morfill, Gregory E. A1 - Muller, M. A1 - Roy, M. A1 - Schafer, G. A1 - Schlotzhauer, G. A1 - Schwehm, Gerhard H. A1 - Spahn, Frank A1 - Stübig, M. A1 - Svestka, Jiri A1 - Tschernjawski, V T1 - The Cassini Cosmic Dust Analyzer N2 - The Cassini-Huygens Cosmic Dust Analyzer (CDA) is intended to provide direct observations of dust grains with masses between 10(-19) and 10(-9) kg in interplanetary space and in the jovian and saturnian systems, to investigate their physical, chemical and dynamical properties as functions of the distances to the Sun, to Jupiter and to Saturn and its satellites and rings, to study their interaction with the saturnian rings, satellites and magnetosphere. Chemical composition of interplanetary meteoroids will be compared with asteroidal and cometary dust, as well as with Saturn dust, ejecta from rings and satellites. Ring and satellites phenomena which might be effects of meteoroid impacts will be compared with the interplanetary dust environment. Electrical charges of particulate matter in the magnetosphere and its consequences will be studied, e.g. the effects of the ambient plasma and the magnetic held on the trajectories of dust particles as well as fragmentation of particles due to electrostatic disruption. The investigation will be performed with an instrument that measures the mass, composition, electric charge, speed, and flight direction of individual dust particles. It is a highly reliable and versatile instrument with a mass sensitivity 106 times higher than that of the Pioneer 10 and I I dust detectors which measured dust in the saturnian system. The Cosmic Dust Analyzer has significant inheritance from former space instrumentation developed for the VEGA, Giotto, Galileo, and Ulysses missions. It will reliably measure impacts from as low as I impact per month up to 104 impacts per second. The instrument weighs 17 kg and consumes 12 W, the integrated time-of-flight mass spectrometer has a mass resolution of up to 50. The nominal data transmission rate is 524 bits/s and varies between 50 and 4192 bps Y1 - 2004 SN - 0038-6308 ER - TY - JOUR A1 - Spahn, Frank A1 - Schmidt, Jürgen A1 - Albers, Nicole A1 - Hörning, Marcel A1 - Makuch, Martin A1 - Seiß, Martin A1 - Kempf, Sascha A1 - Srama, Ralf A1 - Dikarev, Valeri A1 - Helfert, Stefan A1 - Moragas-Klostermeyer, Georg A1 - Krivov, Alexander V. A1 - Sremcevic, Miodrag A1 - Tuzzolino, Anthony J. A1 - Economou, Thanasis A1 - Grün, Eberhard T1 - Cassini dust measurements at Enceladus and implications for the origin of the E ring Y1 - 2006 UR - http://www.sciencemag.org/content/311/5766/1416.full U6 - https://doi.org/10.1126/science.1121375 ER - TY - JOUR A1 - Postberg, Frank A1 - Grün, Eberhard A1 - Horanyi, Mihaly A1 - Kempf, Sascha A1 - Krueger, Harald A1 - Schmidt, Jürgen A1 - Spahn, Frank A1 - Srama, Ralf A1 - Sternovsky, Zoltan A1 - Trieloff, Mario T1 - Compositional mapping of planetary moons by mass spectrometry of dust ejecta JF - Planetary and space science N2 - Classical methods to analyze the surface composition of atmosphereless planetary objects from an orbiter are IR and gamma ray spectroscopy and neutron backscatter measurements. The idea to analyze surface properties with an in-situ instrument has been proposed by Johnson et al. (1998). There, it was suggested to analyze Europa's thin atmosphere with an ion and neutral gas spectrometer. Since the atmospheric components are released by sputtering of the moon's surface, they provide a link to surface composition. Here we present an improved, complementary method to analyze rocky or icy dust particles as samples of planetary objects from which they were ejected. Such particles, generated by the ambient meteoroid bombardment that erodes the surface, are naturally present on all atmosphereless moons and planets. The planetary bodies are enshrouded in clouds of ballistic dust particles, which are characteristic samples of their surfaces. In situ mass spectroscopic analysis of these dust particles impacting onto a detector of an orbiting spacecraft reveals their composition. Recent instrumental developments and tests allow the chemical characterization of ice and dust particles encountered at speeds as low as 1 km/s and an accurate reconstruction of their trajectories. Depending on the sampling altitude, a dust trajectory sensor can trace back the origin of each analyzed grain with about 10 km accuracy at the surface. Since the detection rates are of the order of thousand per orbit, a spatially resolved mapping of the surface composition can be achieved. Certain bodies (e.g., Europa) with particularly dense dust clouds, could provide impact statistics that allow for compositional mapping even on single flybys. Dust impact velocities are in general sufficiently high at orbiters about planetary objects with a radius > 1000 km and with only a thin or no atmosphere. In this work we focus on the scientific benefit of a dust spectrometer on a spacecraft orbiting Earth's Moon as well as Jupiter's Galilean satellites. This 'dust spectrometer' approach provides key chemical and isotopic constraints for varying provinces or geological formations on the surfaces, leading to better understanding of the body's geological evolution. KW - Moon KW - Europa KW - Ganymede KW - Dust KW - Surface composition KW - Spectrometry Y1 - 2011 U6 - https://doi.org/10.1016/j.pss.2011.05.001 SN - 0032-0633 VL - 59 IS - 14 SP - 1815 EP - 1825 PB - Elsevier CY - Oxford ER - TY - JOUR A1 - Krüger, Harald A1 - Krivov, Alexander V. A1 - Grün, Eberhard T1 - A dust cloud around Ganymede Maintained by hypervelocity impacts of interplanetary micrometeoroids Y1 - 2000 SN - 0032-0633 ER - TY - JOUR A1 - Krivov, Alexander V. A1 - Krüger, Harald A1 - Grün, Eberhard A1 - Thiessenhusen, Kai-Uwe A1 - Hamilton, Douglas P. T1 - A tenuous dust ring of Jupiter formed by escaping ejecta from the Galilean satellites Y1 - 2002 SN - 0148-0227 ER - TY - JOUR A1 - Kirvov, Alexander V. A1 - Wardinski, Ingo A1 - Spahn, Frank A1 - Krüger, Harald A1 - Grün, Eberhard T1 - Dust on the outskirts of the Jovian System Y1 - 2002 UR - http://www.idealibrary.com/links/doi/10.1006/icar.2002.6848 ER -