Richter, HeWood, Peter RWoitke, PBolick, U.Sedlmayr, E2015-12-132015-12-130004-6361http://hdl.handle.net/1885/87101Our observations of cool, shock penetrated, expanding atmospheres of M-type Mira variables (Richter & Wood 2001) have suggested that the emission lines of Fe II and [Fe II] can serve as an excellent diagnostic tool to study the hydro- and thermodynamicalKeywords: Calculations; Galaxies; Hydrodynamics; Ionization; Light emission; Mathematical models; Shock waves; Thermodynamics; Nonlocal thermodynamic equilibrium; Photosphere; Radiative transfer; Astrophysics Line: Formation; Radiative transfer; Shock waves; Stars: Late-type; Stars: Variables: General20032015-12-12