Relativistic CI calculations of spectroscopic data for the 2p6 and 2p5

Energy Levels and Radiative Rates for Transitions in F-like Sc XIII and Ne-like Sc XII and Y XXX

“…Ne-like ions are of interest for the studies of astrophysical, lasing and fusion plasmas, and therefore many workers, such as [5][6][7][8][9][10], have reported data for a wide range of ions. However, for brevity, many of them have not reported data for Sc XII, although Hibbert et al [9] have listed lifetimes (τ) for the lowest 27 levels of the 2s 2 2p 6 and 2s 2 2p 5 3 configurations.…”

Extended calculations of energy levels, radiative properties, A, B hyperfine interaction constants, and Landé g -factors for oxygen-like Kr XXIX

“…To provide the LS J labeling system used by the experimentalists, as well as used in other sources, such as the NIST and CHIANTI databases, the ASFs are transformed from a jj-coupled CSF basis into a LS J-coupled CSF basis using the method provided by Gaigalas et al [43,44] The computed excitation energies for all the 344 levels of the 2s 2 2p 4 , 2s2p 5 , 2p 6 , 2s 2 2p 3 3s, 2s 2 2p 3 3p, 2s 2 2p 3 3d, 2s2p 4 3s, 2s2p 4 3p, 2s2p 4 3d, 2p 5 3s, 2p 5 3p, 2p 5 3d, 2s 2 2p 3 4s, 2s 2 2p 3 4p, 2s 2 2p 3 4d, 2s 2 2p 3 4f, and 2s2p 4 4s configurations from our MCDF and MBPT calculations are listed in Table 1, along with the LS J coupling expansion coefficients obtained from our MCDF calculations.…”

“…Previously, for highly ionized Kr, few, if any, atomic data were available. In response to this, we have reported full sets of consistent and highly accurate energies and transition parameters for Kr XXV [4,5], Kr XXVII [6], and Kr XXX [7], and this work continues our efforts for Olike Kr XXIX.…”

“…Unfortunately, theoretical data for Kr XXIX are scarce. Using various methods, some studies of energy and transition data limited to the 2s 2 2p 4 , 2s2p 5 , and 2p 6 configurations were carried out [15][16][17][18][19]. It is clear that atomic data involving the n = 3, 4 levels are also important because of their wide applications in fusion science [10,13].…”

“…The objective of the present study is to provide highly accurate spectroscopic data including energy levels, wavelengths, lifetimes, hyperfine interaction constants, Landé g J -factors, as well as E1, M1, E2, and M2 transition rates, line strengths, and oscillator strengths among the lowest 344 levels belonging to the 2s 2 2p 4 , 2s2p 5 , 2p 6 , 2s 2 2p 3 3s, 2s 2 2p 3 3p, 2s 2 2p 3 3d, 2s2p 4 3s, 2s2p 4 3p, 2s2p 4 3d, 2p 5 3s, 2p 5 3p, 2p 5 3d, 2s 2 2p 3 4s, 2s 2 2p 3 4p, 2s 2 2p 3 4d, 2s 2 2p 3 4f, and 2s2p 4 4s configurations for O-like Kr XXIX. Calculations are performed using the MCDF method [24] implemented in the GRASP2K code [25,26].…”