A New Model for Interstellar Dust
Abstract
Some physical, chemical and optical properties of mixed oxide grain material are discussed and the formation of such dust is examined. Surface chemistry on these grains may be responsible for the selective depletion of elements and for the formation of molecules such as H2CO in diffuse clouds. Spectra of mixed oxide grains yield features at 9.6 and 18 μm together with a broad band at 4.6 μm-1.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- September 1979
- DOI:
- 10.1007/BF00643490
- Bibcode:
- 1979Ap&SS..65...69D
- Keywords:
-
- Astronomical Models;
- Cosmic Dust;
- Interstellar Chemistry;
- Interstellar Matter;
- Optical Properties;
- Oxides;
- Abundance;
- Depletion;
- Formaldehyde;
- Hydroxyl Radicals;
- Infrared Spectra;
- Oxygen Ions;
- Astrophysics