Electric-dipole allowed (E1) and forbidden (E2, M1 and M2) transition probabilities of 4f for N⁺

By applying systematically enlarged multi-configuration Dirac--Fock wavefunction, the transitions for electric-dipole allowed (E1) and forbidden (E2, M1 and M2) lines are studied among 4f pair coupling and low-lying configurations for singly ionized nitrogen. Most important effects of relativity, electron correlation, the rearrangement of electron density, Breit interaction, and quantum electrodynamic effects are included in the computation. Then, allowed (E1) and forbidden (E2, M1 and M2) transition probabilities of 4f for N^+ are obtained and compared with experimental results. Good agreement with available experimental results is found and most of data of 4f are presented for the first time.