Measured extinction of small olivine spheres.
Abstract
Crystalline spheres of the silicate forsterite (Mg2SiO4), with a mean diameter of around 600 A, were prepared in the laboratory. Their infrared extinction in the region 1100-400 wavelengths/cm was quantitatively measured and the results were compared with the work of other authors and with Mie theory calculations. The extremely sharp spikes predicted by Mie theory were not realized, though agreement with peak positions and integrated absorption strengths was good.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- August 1975
- DOI:
- 10.1086/153734
- Bibcode:
- 1975ApJ...199..660D
- Keywords:
-
- Extinction;
- Forsterite;
- Infrared Radiation;
- Interstellar Matter;
- Olivine;
- Silicates;
- Absorption Spectra;
- Astronomical Models;
- Mie Scattering;
- Quantitative Analysis;
- Spheres;
- Astrophysics