Cross sections for electron impact excitation of O VI lines

Abstract

Radiative atomic data and electron impact excitation cross sections for the 2s - 2p transitions in O VI for transitions among the fine structure levels belonging to the 1s2nl (2 ≤ n ≤ 5) configurations have been calculated. We have extended the calculations of fine structure collision strengths up to 140 Ry and have compared our results at energies below 63 Ry to the R-matrix ones.