Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989icar...78..395l&link_type=abstract
Icarus (ISSN 0019-1035), vol. 78, April 1989, p. 395-401.
Astronomy and Astrophysics
Astronomy
31
Asteroids, Astronomical Photometry, Planetary Composition, Chemical Composition, Metallicity, Meteoritic Composition, Polarimetry, Spectrophotometry, Surface Layers, Asteroids, M Asteroids, Surface, Composition, Earth-Based Observations, Photometry, Polarimetry, Laboratory Studies, Silicates, Comparisons, Metal, Samples, Meteorite, Comparisons, Iron Meteorites, Chondrites, Achondrites, Grain Size, Psyche, Lutetia, Kalliope, Hesperia, Lydia, Spectra
Scientific paper
Photometric and polarimetric observations of the largest M-type asteroids conducted over the period 1978-1986 are presently interpreted in view of results from laboratory photometric and polarimetric measurements of meteoritic, terrestrial silicate, and metallic samples. The samples, including among its 13 meteorites suitable representatives of iron, chondrite, and achondrite types, are of similar structure, with grain sizes smaller than 50 microns. An analysis of all data extant indicate that the surfaces of the largest M-type asteroids, namely 16, 21, 22, 69, and 110, cannot consist of pure metal; they must instead include silicate componentlike stony-iron and enstatite chondrite meteorites.
Belskaya Irina N.
Lupishko Dmitrij F.
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