Interstellar Graphite Grain Temperature and Infrared Optical Constants
Abstract
The temperature of graphite grains in the interstellar medium has been computed with different assumptions on the extrapolation of its optical constants into infrared. It is found that values computed up to now are generally underestimated by 10 20% in normal interstellar conditions. For extreme conditions (very dark clouds) errors by a factor of two are possible and more attention has to be paid in dealing with problems related to molecule formation.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- September 1977
- DOI:
- 10.1007/BF00642459
- Bibcode:
- 1977Ap&SS..51..111A
- Keywords:
-
- Cosmic Dust;
- Graphite;
- Infrared Radiation;
- Interstellar Matter;
- Optical Properties;
- Temperature Distribution;
- Extrapolation;
- Granular Materials;
- Interstellar Radiation;
- Thermal Radiation;
- Astrophysics