Abstract
Dielectronic-recombination (DR) rate coefficients for the ground state of Ni-like ${\mathrm{Ta}}^{45+}$ have been calculated for the electron temperatures in the range 0.02T10 keV. The calculations were carried out in the isolated resonance approximation using the multiconfiguration Dirac-Fock model in intermediate coupling with configuration interaction. The total DR rate coefficients were obtained by including the contributions from the 3s, 3p, and 3d excitations. The rate coefficients are found to peak at very low temperature (\ensuremath{\sim}80 eV) with a value of 3.58\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}10}$ ${\mathrm{cm}}^{3}$/sec and reduce to 1.48\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}10}$ ${\mathrm{cm}}^{3}$/sec at T=1 keV.
Published Version
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