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Non-Thermal Emission Mechanisms in Astronomy

Published online by Cambridge University Press:  25 April 2016

K. C. Westfold
K. C. Westfold*
Affiliation:
Department of Mathematics, Monash University
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Extract

Whether a mechanism for the emission of radiation can properly be regarded as thermal or non-thermal depends on the nature and extent of the interactions that take place between the radiation resulting from such a process and the surrounding medium. Thus, no matter what the emission mechanism there can be a balance between emission and absorption processes such as to produce a state of local thermodynamic equilibrium (LTE), so that the net radiation available for transport through the source region is thermal.

Type
Invited Papers
Information
Publications of the Astronomical Society of Australia , Volume 3 , Issue 3 , 1978 , pp. 195 - 199
Copyright
Copyright © Astronomical Society of Australia 1978

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