Electronic isotope shift factors for the Ir 5d76s24F9/2→(odd,J=9/2) line at 247.587 nm

We present the theoretical calculations of the electronic isotope shift factors of the 5 d 7 6 s 2 4 F 9 / 2 → ( odd , J = 9 / 2 ) line at 247.587 nm, that were recently used to extract nuclear mean square radii and nuclear deformations of iridium isotopes [Mukai et al. (2020)]. The fully relativistic multiconfiguration Dirac-Hartree-Fock method and the relativistic configuration interaction method were used to perform the atomic structure calculations. Additional properties such as the sharing rule, Lande g factors or phase tracking were employed to ensure an adequate description of the targeted odd level.