From the Vector to Scalar Perturbations Addition in the Stark Broadening Theory of Spectral Lines

The effect of plasma Coulomb microfied dynamics on spectral line shapes is under consideration. analytical solution the problem unachievable with famous Chandrasekhar–Von-Neumann results up to present time. alternative methods are connected modeling a real ion field by approximate models. One most accurate theories ions in plasmas Frequency Fluctuation Model (FFM) tested comparison microfield numerical simulations. goal paper make detailed FFM ones for linear and quadratic Stark effects different limiting cases. main perturbation additions laws known be vector small particle velocities (static shapes) scalar large (the impact limit). general solutions frame used test procedure. difference between “scalar” “vector” models demonstrated both effects. It shown that correct transition from static limits Stark-effect needs account dependence electric jumping frequency strengths. However, constant quite satisfactory description Stark-effect. without presented.