Emission and Cooling Processes in a Hybrid Thermal-Nonthermal Plasma
Astrophysics
2009-10-30 v1
Abstract
In a hybrid thermal-nonthermal plasma, we find that the dominant emission and absorption mechanisms are synchrotron by nonthermal electrons and bremsstrahlung by thermal electrons. These two processes significantly change the spectrum from inverse Compton scatterings at low energies. We also find that Coulomb collisions are effective in cooling down the lower energy electrons but do not significantly alter the emission pattern. Compton cooling is more effective in changing emission and absorption coefficients when the photon energy density is high.
Cite
@article{arxiv.astro-ph/9711107,
title = {Emission and Cooling Processes in a Hybrid Thermal-Nonthermal Plasma},
author = {D. Lin and E. P. Liang},
journal= {arXiv preprint arXiv:astro-ph/9711107},
year = {2009}
}
Comments
(4 pages, 3 figures, to appear in Proceedings of the Fourth Huntsville Symposium on Gamma-Ray Bursts)