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• Excitation energies and lifetimes for the lowest 301 levels of Nb XXX are presented. • The atomic data for E1, M1, E2, and M2 transitions in Nb XXX are presented. • The calculations are performed using the fully relativistic multiconfiguration Dirac-Hartree-Fock (MCDHF) method. • Comparisons with available experimental and other theoretical results are performed. • The accuracy of E1, M1, E2, and M2 line strengths of Nb XXX is estimated. The calculations are performed to calculate the excitation energies, wavelengths, line strengths, transition probabilities, and weighted oscillator strengths for the electric-dipole (E1), electric-quadrupole (E2), magnetic-dipole (M1), and magnetic-quadrupole (M2) transitions between the lowest 301 fine-structure levels of the 3 snl (n = 3 − 6, l = 0 − 5), 3 pnl (n = 3 − 5, l = 0 − 4), and 3 dnl (n = 3 − 5, l = 0 − 4) configurations in Mg-like niobium, Nb XXX. In addition, the level designations in the LS - and jj -coupling schemes and lifetimes are presented. The calculations are carried out using the GRASP2018 atomic structure package which is based on the multiconfiguration Dirac-Hartree-Fock (MCDHF) method, with the contributions of the Breit interaction and quantum electrodynamics (QED) corrections included. The accuracy of the present energies, lifetimes, and transition data is calculated utilizing a comparison of the results from the present MCDHF largest layers from two different approaches, as well as the comparison with theoretical and experimental data that are currently accessible. [ABSTRACT FROM AUTHOR]

• Excitation energies and lifetimes for the lowest 303 levels of Zr XXIX are presented. • The atomic data for E1, M1, E2, and M2 transitions in Zr XXIX are presented. • The calculations are performed using the fully relativistic multiconfiguration Dirac-Hartree-Fock (MCDHF) method. • Comparisons with available experimental and other theoretical results are performed. • The accuracy of E1, M1, E2, and M2 line strengths of Zr XXIX is estimated. The energies and lifetimes of the lowest 303 fine-structure levels belonging to the 3 s 2, 3 s 3 p , 3 s 3 d , 3 p 3 d , 3 d 2, 3 snl (n = 4 − 6; l = 0 − 5), 3 pnl (n = 4 − 5; l = 0 − 4), 3 p 6 s , and 3 dnl (n = 4 − 5; l = 0 − 4) configurations of Mg-like zirconium, Zr XXIX, are calculated using the relativistic multiconfiguration Dirac-Hartree-Fack (MCDHF) method employed in the GRASP2018 atomic structure computer package. The MCDHF wavelengths, transition probabilities, weighted oscillator strengths, and line strengths for the electric dipole (E1), electric quadrupole (E2), magnetic dipole (M1), and magnetic quadrupole (M2) transitions between the levels considered are presented. The Breit-interaciton (BI) and quantum electrodynamics (QED) effects are considered in the computations. Comparisons with available experimental and other theoretical data are carried out to evaluate the accuracy of the present results. [ABSTRACT FROM AUTHOR]

Energies and lifetimes of the lowest 178 levels belonging to the 1 s 2 2 s 2 , 1 s 2 2 s 2 p , 1 s 2 2 p 2 , 1 s 2 2 s n l , and 1 s 2 2 p n l (n = 3 − 6 ; l = 0 − 5) configurations in Be-like hafnium and tantalum ions (Hf LXIX and Ta LXX) have been computed, as well as transition wavelengths, transition probabilities, line strengths, and weighted oscillator strengths of the electric/magnetic dipole (E1/M1) and electric/magnetic quadrupole (E2/M2) transitions between these levels. The calculations have been carried out using the GRASP2018 code through the multiconfiguration Dirac–Hartree–Fock (MCDHF) method with the Breit interaction and quantum electrodynamics (QED) corrections. The present results have been compared with previous data. Furthermore, the values of the last two active sets were compared to estimate the accuracy. • Comprehensive calculations of atomic data for Hf LXIX and Ta LXX. • The MCDHF method has been utilized through the GRASP2018 code. • The accuracy of atomic parameters has been estimated. [ABSTRACT FROM AUTHOR]

• Excitation energies, lifetimes, and level designations in jj - and LS -coupling schemes for the lowest 139 fine-structure levels of In XL and Sn XLI are calculated. • Wavelengths, E1, M1, E2, and M2 transition probabilities, weighted oscillator strengths, and line strengths for the transitions among the lowest 139 levels of In XL and Sn XLI are calculated. • The present calculations are performed using the fully relativistic multiconfiguration Dirac-Hartree-Fock (MCDHF) method. • The present MCDHF energies, wavelengths, transition probabilities, and weighted oscillator strengths are compared with the available experimental and other theoretical results. • The accuracy of lifetimes, E1, M1, E2, and M2 line strengths of In XL and Sn XLI is estimated. Excitation energies, lifetimes, and level designations in jj - and LS -coupling schemes are computed for the lowest 139 fine-structure levels belonging to the 2 s 22 p 6, 2 s 22 p 5 nl (n = 3 − 5, l = 0 − 4), and 2 s 2 p 6 nl (n = 3 − 4, l = 0 − 3) configurations in Ne-like In XL and Sn XLI. Wavelengths, weighted oscillator strengths, transition probabilities, and line strengths are calculated for allowed and forbidden transitions including electric dipole (E1), electric quadrupole (E2), magnetic dipole (M1), and magnetic quadrupole (M2) transitions. The computations are done with the fully relativistic multiconfiguration Dirac-Hartree-Fock (MCDHF) method, which incorporates the Breit-interaction (BI) and quantum electrodynamics (QED) effects. The present results are compared to available experimental and other theoretical data in order to determine the accuracy of results. [ABSTRACT FROM AUTHOR]

• Excitation energies and lifetimes for the lowest 184 fine-structure levels of Ag XLIV and Cd XLV are calculated. • Wavelengths, transition probabilities, weighted oscillator strengths, and line strengths for electric dipole (E1), magnetic dipole (M1), electric quadrupole (E2), and magnetic quadrupole (M2) transitions of Ag XLIV and Cd XLV are calculated. • The fully relativistic multiconfiguration Dirac-Hartree-Fock (MCDHF) method is used for calculations. • The present MCDHF energies, wavelengths, transition probabilities, oscillator strengths, and line strengths are compared with other available results. • The accuracy of lifetimes, E1, E2, M1, and M2 line strengths is evaluated. Excitation energies, LS -compositions, and lifetimes for the 184 fine-structure levels related to the 2 s 2, 2 p 2, 2 snl (n = 3 − 6; l = 0 − 4), and 2 pnl (n = 3 − 5; l = 0 − 4) configurations as well as transition data for the electric/magnetic-dipole (E1/M1) and electric/magnetic-quadrupole (E2/M2) transitions between these levels are calculated for Be-like Ag XLIV and Cd XLV. The GRASP2018 atomic structure computer package, which is based on the multiconfiguration Dirac-Hartree-Fock (MCDHF) method, is used to perform the present computations. The Breit interaction and quantum electrodynamics (QED) effects are included in the relativistic configuration interaction (RCI) computations. The convergence of excitation energies for various active sets is discussed and the discrepancy between the present energies and oscillator strengths with other theoretical results is graphically illustrated. The uncertainty estimation of the present results for lifetimes and line strengths is performed by comparing the two active sets of the present MCDHF calculations. [ABSTRACT FROM AUTHOR]

Abstract: Energy levels, wavelengths, transition probabilities, and oscillator strengths have been calculated for Ge-like Kr, Mo, Sn, and Xe ions among the fine-structure levels of terms belonging to the ([Ar]3d10)4s24p2, ([Ar]3d10)4s4p3, ([Ar]3d10)4s24p4d, and ([Ar]3d10)4p4 configurations. The fully relativistic multiconfiguration Dirac–Fock method, taking both correlations within the complex and the quantum electrodynamic effects into account, have been used in the calculations. The results are compared with the available experimental and other theoretical results. [Copyright &y& Elsevier]

• Excitation energies and lifetimes for the lowest 226 fine-structure levels of Y XXXII are calculated. • Wavelengths, E1, M1, E2, and M2 transition probabilities, weighted oscillator strengths, and line strengths for the transitions among the lowest 226 levels of Y XXXII are calculated. • The present calculations are performed using the fully relativistic multiconfiguration Dirac-Hartree-Fock (MCDHF) method. • The present MCDHF energies, wavelengths, and oscillator strengths are compared with the available experimental and other theoretical results. • The accuracy of E1, M1, E2, and M2 line strengths of Y XXXII is estimated. Energies, wavelengths, line strengths, transition probabilities, and weighted oscillator strengths for electric dipole (E1), electric quadrupole (E2), magnetic dipole (M1), and magnetic quadrupole (M2) transitions among the levels arising from the n ≤ 3 configurations of oxygen-like yttrium, Y XXXII, are calculated using the multiconfiguration Dirac-Hartree-Fock (MCDHF) method. In the calculations, the valence-valence (VV) and core-valence (CV) correlations, as well as the Breit interaction (BI) and the leading quantum electrodynamics (QED) contributions are considered. Comparisons with the available results are used to determine the uncertainty for energies, wavelengths, and oscillator strengths. For lifetimes, E1, E2, M1, and M2 line strengths, the comparisons are also made between the two sets of the present MCDHF calculations to determine the accuracy of the results. [ABSTRACT FROM AUTHOR]

• Excitation energies and lifetimes for the lowest 226 levels of Nb XXXIV are calculated. • The atomic data for E1, M1, E2, and M2 transitions in Nb XXXIV are calculated. • The calculations are performed using the fully relativistic multiconfiguration Dirac-Hartree-Fock (MCDHF) method. • Comparisons of energies, wavelengths, line strengths, and oscillator strengths with the available experimental and other theoretical results are performed. • The accuracy of E1, M1, E2, M2 line strengths of Nb XXXIV is estimated. The multiconfiguration Dirac-Hartree-Fock (MCDHF) method is used to calculate energies, lifetimes, wavelengths, transition probabilities, weighted oscillator strengths, and line strengths for electric dipole (E1), magnetic dipole (M1), electric quadrupole (E2), and magnetic quadrupole (M2) transitions among the lowest 226 fine-structure levels arising from the 2 s 22 p 4, 2 s 2 p 5, 2 p 6, 2 s 22 p 33 l , 2 s 2 p 43 l , and 2 p 53 l (l = s , p , d) configurations in O-like Nb XXXIV. The valence and core-valence correlation effects are included in the calculations. The Breit-interaction and the leading quantum electrodynamics contributions are taken into account in the relativistic configuration interaction calculations. The present energies, wavelengths, line strengths, and oscillator strengths are compared with the available experimental and other theoretical results. The accuracy of the present results is estimated using the comparison between the results from the two largest layers in the present MCDHF calculations. [ABSTRACT FROM AUTHOR]

• Excitation energies and lifetimes for the lowest 236 fine-structure levels of Zr XXXV are calculated. • Wavelengths, transition rates, weighted oscillator strengths, and line strengths for E1, M1, E2, and M2 transitions of Zr XXXV are calculated. • The calculations are performed using the fully relativistic multiconfiguration Dirac-Hartree-Fock (MCDHF) method. • The present MCDHF energies, wavelengths, and electric dipole oscillator strengths are compared with other available theoretical results. Excitation energies, wavelengths, transition probabilities, weighted oscillator strengths, and line strengths for electric dipole (E1), magnetic dipole (M1), electric quadrupole (E2), and magnetic quadrupole (M2) transitions between the states of the 2 s 22 p 2, 2 s 2 p 3, 2 p 4, 2 s 22 p 3 l , 2 s 2 p 23 l , and 2 p 33 l (l = s , p , d) configurations are calculated using the multiconfiguration Dirac-Hartree-Fock (MCDHF) method for C-like Zr XXXV. The Breit interaction and quantum electrodynamics (QED) contributions are included in the relativistic configuration interaction calculations. The calculated energies, wavelengths, and oscillator strengths are compared with the other theoretical results. [ABSTRACT FROM AUTHOR]