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Scattering Properties of Dust Particles in Weightlessness

Published online by Cambridge University Press:  27 February 2018

J. C. Worms ,
A.C. Levasseur-Regourd ,
E. Hadamcik  and
D. Bourras
J. C. Worms
Affiliation:
CNRS Aéronomie/Université Paris 6, BP 3, 91371 Verrières Cedex, France J.B. Renard, CNRS/LPCE Orléans, France
A.C. Levasseur-Regourd
Affiliation:
CNRS Aéronomie/Université Paris 6, BP 3, 91371 Verrières Cedex, France J.B. Renard, CNRS/LPCE Orléans, France
E. Hadamcik
Affiliation:
CNRS Aéronomie/Université Paris 6, BP 3, 91371 Verrières Cedex, France J.B. Renard, CNRS/LPCE Orléans, France
D. Bourras
Affiliation:
CNRS Aéronomie/Université Paris 6, BP 3, 91371 Verrières Cedex, France J.B. Renard, CNRS/LPCE Orléans, France

Abstract

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Polarimetric measurements of the light scattered by irregular dust particles are essential to interpret observations of solar system dust in terms of its physical properties. We developed a iight scattering unit to retrieve polarimetric phase curves of dust samples in microgravity conditions. Preliminary results suggest that the values for the maximum polarization are higher under 1 “ g ” than under 0 “ g ” This can be compared to ground-based measurements which exhibit higher values for packed dust than for sifted dust. The unit is operational and is used to help design a related orbital experiment.

Type
XI. Light Scattering
Information
International Astronomical Union Colloquium , Volume 150: Physics, Chemistry and Dynamics of Interplanetary Dust , 1996 , pp. 415 - 418
Copyright
Copyright © Astronomical Society of the Pacific 1996

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