Uncertainty evaluation of the isotope shift factors for 2s2p^3,1P₁^o-2s²¹S₀ transitions in B II

Accurate isotope shift factors of the 2s2p ^3,1P₁-2s2¹S₀ transitions in B II, obtained with the multi-configuration Dirac-Hartree-Fock and the relativistic configuration interaction methods, are reported. We found a linear correlation relation between the mass shift factors and the energies for the transitions concerned, considering all-order electron correlations. This relation is important for estimating the uncertainty in the calculation of isotope shift factors. These atomic data can be used to extract the nuclear mean-square charge radii of the boron isotopes with halo structures or to resolve the high precise spectroscopy of B II in astronomical observation.