Doyle, J.G.

Contact Email: jgd@star.arm.ac.uk
Institute: Armagh Observatory
First Coauthor: I.Roussev
Institute: Armagh Observatory/HAO
Second Coauthor: M. Madjarska
Institute: Armagh Observatory
Research URL:http://star.arm.ac.uk
Subject Area: The Sun
Waveband: Ultraviolet
Technique: Computational Astrophysics
Presentation: Poster Display
Title: The Downflow Problem in Transition Region Lines in the Solar Atmosphere
Abstract: We present results on the response of a 2D MHD environment representing the solar transition region to micro-scale energy depositions. A variety of temperatures at which the energy deposition takes place as well as the amount of energy deposited are examined. The numerical modelling involves 2-dimensional (2D) dissipative, radiative, nonlinear magnetohydrodynamics (MHD). This work is a continuation of previous related simulations where small-scale energy depositions were modelled in 1D radiative hydrodynamics. The observable consequences of such transient events are then computed in three representative resonant transition region lines, i.e. C IV 1548A, O VI 1032A, and Ne VIII 771A, under the consideration of non-equilibrium ionization.