Near-Earth asteroid surface roughness depends on compositional class

Details Near-Earth asteroid surface roughness depends on compositional class Near-Earth asteroid surface roughness depends on compositional class

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008icar..198..294b&link_type=abstract

Icarus, Volume 198, Issue 2, p. 294-304.

Mathematics

Logic

17

Scientific paper

Radar observations of 214 near-Earth asteroids (NEAs) reveal a very strong correlation of circular polarization ratio with visible infrared taxonomic class, establishing distinct differences in the centimeter-to-several-decimeter structural complexity of objects in different spectral classes. The correlation may be due to the intrinsic mechanical properties of different mineralogical assemblages but also may reflect very different formation ages and collisional histories. The highest ratios are measured for groups associated with achondritic igneous rocky meteorites: the E class, whose parent body may be 3103 Eger, and the V class, derived from the mainbelt asteroid (and Dawn mission target) 4 Vesta.

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