Abstract
•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 2s22p6, 2s22p5nl (n = 3 − 5, l = 0 − 4), and 2s2p6nl (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.