Halpha with Heating by Particle Beams

Abstract

Using 1D NLTE radiative hydrodynamics we model the influence of the particle beams on the Halpha line profile treating the beam propagation and the atmosphere evolution self-consistently. We focus on the influence of the non-thermal collisional rates and the return current. Based on our results, we propose a diagnostic method for determination of the particle beam presence in the formation regions of the Halpha line.

In press, "Physics of Chromospheric Plasmas" (Coimbra), ASP 368, 441 (2007)