Detection of silicate emission features in the 8- to 13-micron spectra of main belt asteroids

Details Detection of silicate emission features in the 8- to 13-micron spectra of main belt asteroids Detection of silicate emission features in the 8- to 13-micron spectra of main belt asteroids

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icar...56..393f&link_type=abstract

Icarus (ISSN 0019-1035), vol. 56, Dec. 1983, p. 393-397.

Computer Science

17

Asteroids, Infrared Spectra, Planetary Composition, Silicates, Thermal Emission, Irradiance, Planetary Surfaces, Vibrational Spectra

Scientific paper

The authors present 8.0 - 13.0 micron spectra (Δλ/λ = 0.02 - 0.03) for six main belt asteroids, which range from 58 to 220 km in diameter and sample the five principal taxonomic classes (C, S, M, R and E). Narrow, well-defined silicate emission features are present on two of the asteroids, the C-type 19 Fortuna and the M-type 21 Lutetia. No comparable emission features are observed on the S-types 11 Parthenope and 14 Irene, the R-type 349 Dembowska or the E-type 64 Angelina.

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