PROGRA2 experiment: New results for dust clouds and regoliths analogs

Details PROGRA2 experiment: New results for dust clouds and regoliths analogs PROGRA2 experiment: New results for dust clouds and regoliths analogs

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006adspr..38.2006h&link_type=abstract

Advances in Space Research, Volume 38, Issue 9, p. 2006-2012.

Computer Science

4

Scientific paper

With the PROGRA2 experience, linear polarization of scattered light is measured on various types of dust clouds lifted by microgravity, or by an air-draught. The aim is to compare the phase curves for dust analogs with those obtained in the Solar System (cometary comae, and solid particles in planetary atmospheres) by remote-sensing and in situ techniques. Measurements are also performed on layers of particles (on the ground) and compared with remote measurements on asteroidal regoliths and planetary surfaces. New phase curves have been obtained, e.g., for quartz samples, crystals, fluffy mixtures of silica and carbon blacks and a high porosity regolith analog made of micron-sized silica spheres. This work will contribute to the choice of the samples to be studied with the ICAPS experiment onboard the ISS and on the precursor experiment.

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