Thermalisation of electrons in a stellar atmosphere

Details Thermalisation of electrons in a stellar atmosphere Thermalisation of electrons in a stellar atmosphere

2006-01-19

arxiv.org/abs/astro-ph/0601459v2

SF2A-2001: Semaine de l'Astrophysique Francaise, meeting held in Lyon, France, May 28 - June 1, 2001, Edited by F. Combes, D.

Astronomy and Astrophysics

Astrophysics

4 pages, 1 figure, conference, journal-ref updated

Scientific paper

We are interested in electrons kinetics in a stellar atmosphere to validate or invalidate the usually accepted hypothesis of thermalisation of electrons. For this purpose, we calculate the velocity distribution function of electrons by solving the kinetic equation of these particles together with the equations of radiative transfer and statistical equilibrium. We note that this distribution can deviate strongly from a Maxwell-Boltzmann distribution if non-LTE effects are important. Some results and astrophysical consequences are examined.

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