Linear polarization of dielectronic satellite lines of hydrogenlike ions with Z values ranging from 9 to 92

A systematic investigation of dielectronic satellite lines in hydrogenlike ions with Z values ranging from 9 to 92 is carried out, with a focus on the effects of the Breit interaction and the generalized Breit interaction on their linear polarization. We present a detailed analysis of the polarization behaviors and resonance strengths of the satellite lines, facilitating the spectral analysis under the electron-beam ion-trap measurement conditions. Emphasizing the second-step radiative decay process in dielectronic recombination of hydrogenlike Ti²¹⁺, Kr³⁵⁺, Mo⁴¹⁺, and U⁹¹⁺ ions, the alignment parameters of the singly excited states are determined by using both the deorientation factor formalism and density-matrix theory. These calculations indicate a promising opportunity for understanding the effect of the Breit interaction as well as differentiating the formalism of the deorientation factor and the density-matrix theory for the calculations of dielectronic satellite lines.