Relativistic quantum mechanical calculations of electron-impact broadening for spectral lines in Be-like ions

Aims. We present relativistic quantum mechanical calculations of electron-impact broadening of the singlet and triplet transition 2s3s <- 2s3p in four Be-like ions from N IV to Ne VII. Methods. In our theoretical calculations, the K-matrix and related symmetry information determined by the colliding systems are generated by the DARC codes. Results. A careful comparison between our calculations and experimental results shows good agreement. Our calculated widths of spectral lines also agree with earlier theoretical results. Our investigations provide new methods of calculating electron-impact broadening parameters for plasma diagnostics.Astronomy & AstrophysicsSCI(E)EI2ARTICLEnull54