Popis: |
The dielectronic recombination (DR) rate coefficient ${\ensuremath{\alpha}}^{\mathrm{DR}}$ is explicitly calculated for Mo, Fe, and Ar target ions of the Na isoelectronic sequence (11 electrons). This work is an extension of a previous study of DR for ${\mathrm{Mo}}^{31+}$ ions. Both $\ensuremath{\Delta}n\ensuremath{\ne}0$ and $\ensuremath{\Delta}n=0$ transitions are considered in detail, with full $\mathrm{LS}$ coupling. The radiative and Auger cascade effects are found to be important, especially for high Rydberg states, and are included in the final rate-coefficient estimate. Scaling of ${\ensuremath{\alpha}}^{\mathrm{DR}}$ with ionic charge and free-electron temperature is discussed. |