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Radiation induced Rotation of Interplanetary Dust Particles; a Feasibility Study for a Space Experiment
Published online by Cambridge University Press: 14 August 2015
Abstract
Irregular interplanetary dust particles may acquire a considerable spin rate due to two non-statistical dynamical mechanisms induced by solar radiation. These arise from variations in surface albedo as discussed by Radzievskii (1954) and from irregularities in surface geometry as discussed by Paddack (1969). We report on an experiment which will lead to an evaluation in space of the effectiveness of these two spin mechanisms. We utilize the technique of optical levitation in an argon laser beam to provide a stable trap for particles (10-60 microns in diameter). The spin rate and direction of the spin axis are measured in a straightforward manner. The objective is to design an optical trap for dielectric particles in vacuum which can be used to study these rotation mechanisms in the gravity-free environment of a Spacelab experiment.
- Type
- IV: The Interplanetary Dust Complex 2. Physical Properties
- Information
- Symposium - International Astronomical Union , Volume 90: Solid Particles in the Solar System , 1980 , pp. 391 - 394
- Copyright
- Copyright © Reidel 1980
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