The cosmic dust aggregation experiment CODAG

Details The cosmic dust aggregation experiment CODAG The cosmic dust aggregation experiment CODAG

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999mesct..10..836b&link_type=abstract

Measurement Science and Technology, Volume 10, Issue 10, pp. 836-844 (1999).

Physics

5

Scientific paper

For the simulation of the first stage of preplanetary dust aggregation, we developed the cosmic dust aggregation experiment (CODAG). With CODAG, we intend to study the aggregational behaviour of a cloud of micron-sized dust particles due to Brownian motion of the grains. For a realistic simulation of the processes in the young solar system, the dust grains have to be dispersed in a rarefied gas so that mutual collisions are ballistic. Fast sedimentation of the grains in the Earth's gravitational field leads to unrealistic collision velocities and to a rapid loss of particles to the container walls. Therefore, CODAG was designed to work in a microgravity environment. In this paper, we present an overview of the experimental design of CODAG which was recently flown in a Get Away Special container during the STS-95 mission.

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