Solar Chromospheric and Transition Region Response to Energy Deposition in the Middle and Upper Chromosphere

A series of numerical simulations modeling the chromosphere and transition region response to deposition of thermal energy ranging from about 5 x 10 exp 24 to 5 x 10 exp 28 ergs in the middle or upper chromosphere is reported. The dissipative effects of heat conduction, optically thin radiation losses in the corona, and an approximate expression for the radiation losses of lower temperature plasma are calculated. In response to the energy deposition, chromospheric material is ejected into the corona in the form of pressure gradient generated jets, jets with pressure-gradient, and shock-generated components, or high-speed gas plugs. Category of ejection depends on the spatial and temporal distribution and the magnitude of the input energy source.