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          Institute: MPI für Kernphysik     Collection: Interplanetary Dust Physics     Display Documents



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ID: 28197.0, MPI für Kernphysik / Interplanetary Dust Physics
First results from the cosmic dust aggregation experiment CODAG DYNAMICS
Authors:Blum, J.; Wurm, G.; Poppe, T.; Kempf, S.; Kozasa, T.
Language:English
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Advances in Space Research
Volume:29
Start Page:497
End Page:503
Review Status:not specified
Audience:Experts Only
Abstract / Description:The Cosmic Dust Aggregation Experiment (CODAG), an experimental simulation of the onset of planet formation, was successfully flown on STS-95 (October/November 1998) and on Maser 8 (May 1999). The main objective of the CODAG experiment was a direct observation of the Brownian motion-induced coagulation process of micron-sized dust particles. To overcome rapid sedimentation of the dust grains in the rarefied gas atmosphere, experiments were conducted in a long-duration microgravity environment. In the experiment, we observed that within several minutes the initially deagglomerated dust grains formed fractal dust aggregates due to their thermal motion and subsequent mutual collisions. The results from this experiment are the first experimental proof that the concept of pre-planetary dust coagulation is correct. (C) 2002 COSPAR. Published by Elsevier Science Ltd. All rights reserved.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group K. Mauersberger/Interplantary Dust Research (E. Grün)
External Affiliations:Inst Astrophys, Schillergasschen 2-3, D-07745 Jena, Germany; Univ Observ, D-07745 Jena, Germany; Univ Colorado, Atmospher & Space Phys Lab, Boulder, CO 80309 USA; Hokkaido Univ, Grad Sch Sci, Div Earth & Planetary Sci, Sapporo, Hokkaido 0600810, Japan
Identifiers:ISI:000175230700002 [ID No:1]
ISSN:0273-1177 [ID No:2]
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