Experimental test of a radiative transfer model of the optical effects of space weathering

Details Experimental test of a radiative transfer model of the optical effects of space weathering Experimental test of a radiative transfer model of the optical effects of space weathering

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008icar..197..348l&link_type=abstract

Icarus, Volume 197, Issue 1, p. 348-353.

Physics

16

Scientific paper

We compare laboratory measurements of the optical effects of nanophase iron on near-IR reflectance spectra of transparent silica gel infused with small iron particles [Noble, S.K., Pieters, C.M., Keller, L.P., 2007. Icarus 192, 629 642] with a radiative transfer model of the process [Hapke, B., 2001. J. Geophys. Res. 106 (E5), 10039 10074]. We find that the measurements exhibit reddening and darkening effects of nanophase (<50 nm) iron particles, a darkening effect of somewhat larger particles (>50 nm) and mixing effects of silica gel particles of varying total iron abundance. The radiative transfer model reproduces the effects of nanophase iron within the experimental uncertainties.

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