TY  - JOUR
A1  - Eckhardt, Th.
A1  - Rutloh, M.
A1  - Stumpe, Joachim
A1  - Krüger, Harald
T1  - Photo-Induced "Command Effects" in LC polymers by the combination of photoorientation and thermotropic self- organization
Y1  - 1998
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  - 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  - Frübing, Peter
A1  - Krüger, Harald
A1  - Goering, H.
A1  - Gerhard, Reimund
T1  - Relaxation behaviour of thermoplastic polyurethanes with covalently attached nitroaniline dipoles
Y1  - 2002
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  - 
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  - Sremcevic, Miodrag
A1  - Krivov, Alexander V.
A1  - Krüger, Harald
A1  - Spahn, Frank
T1  - Impact-generated dust clouds around planetary satellites : model versus Galileo
N2  - This paper focuses on tenuous dust clouds of Jupiter's Galilean moons Europa, Ganymede and Callisto. In a companion paper (Sremcevic et al., Planet. Space Sci. 51 (2003) 455-471) an analytical model of impact-generated ejecta dust clouds surrounding planetary satellites has been developed. The main aim of the model is to predict the asymmetries in the dust clouds which may arise from the orbital motion of the parent body through a field of impactors. The Galileo dust detector data from flybys at Europa, Ganymede and Callisto are compatible with the model, assuming projectiles to be interplanetary micrometeoroids. The analysis of the data suggests that two interplanetary impactor populations are most likely the source of the measured dust clouds: impactors with isotropically distributed velocities and micrometeoroids in retrograde orbits. Other impactor populations, namely those originating in the Jovian system, or interplanetary projectiles with low orbital eccentricities and inclinations, or interstellar stream particles, can be ruled out by the statistical analysis of the data. The data analysis also suggests that the mean ejecta velocity angle to the normal at the satellite surface is around 30°, which is in agreement with laboratory studies of the hypervelocity impacts. © 2004 Elsevier Ltd. All rights reserved
Y1  - 2005
SN  - 0032-0633
ER  -