Relativistic effects on radiative transfer equation: order of magnitude study.
Abstract
The author has analyzed how the high gas velocities which are observed in objects such as the atmospheres of supergiant stars, novae, supernovae, accretion discs around high density objects would change the coefficients of different terms in the transfer equation which is solved in a comoving frame. Velocities as low as 5000 km s-1 are enough to show the relativistic effects in different terms in the transfer equation. It is suggested that the relativistic effects must be taken into account in almost all the cases where the line profiles are studied in the expanding atmospheres.
- Publication:
-
Kodaikanal Observatory Bulletins
- Pub Date:
- 1986
- Bibcode:
- 1986KodOB...5..141P
- Keywords:
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- Radiative Transfer:Relativity;
- Relativity:Radiative Transfer