Wavelengths and transition probabilities in the quartet spectrum of NV

Energies and structures of 1s2snl 4 L and 1s2pnl' 4 L core-excited levels in lithium-like NV are calculated. Wavelengths, transition probabilities and radiative lifetimes are reported and compared with available experimental data. It is suggested that the 1s2p4d 4 P 0,4 D 0 levels are nearly degenerate in NV and have not been resolved experimentally. Several new assignments for observed lines are proposed.