Electron impact excitation rate coefficients for P-like Ni XIV

Abstract

We have calculated the atomic data including electron impact excitations and radiative decays among the lowest 143 fine-structure levels arising from 3s23p3, 3s3p4, 3s23p23d, 3p5, 3s3p33d, and 3s23p3d2 configurations in P-like Ni XIV. Direct excitation collision strengths are calculated employing the relativistic distorted-wave method. Resonances are included via the isolated resonance approximation using distorted-waves. Resonance contributions from S-like [3s23p3, 3s3p4, 3s23p23d,3p5, 3s3p33d,3s23p3d2, 3p43d,3s3p23d2,3s23d3]n′l′ complex series are taken into account. Effective collision strengths are reported over an electron temperature range of 1.0×105–1.0×108 K.