Dielectronic recombination for boronlike ions

We have calculated the total dielectronic recombination (DR) coefficients for the ²P_1/2 and ²P_3/2 states in B-like Ti¹⁷⁺, Fe²¹⁺, and Mo³⁷⁺ ions for electron temperatures 0.1<=T<=10 000 eV. The calculations are carried out using the multiconfiguration Dirac-Fock method in intermediate coupling with a configuration interaction. We find that accurate Coster-Kronig energies are critical for a successful determination of low-temperature DR coefficients. We also find that the DR involving fine-structure excitations can be as important as the 2s-2p excitation channels in the low-temperature regime for some ions.