Quasirelativistic calculation of 4s$^2$4p$^5$, 4s$^2$4p$^4$4d and 4s4p$^6$ configuration spectroscopic parameters for the W$^{39+}$ ion

TL;DR

This paper presents a quasirelativistic Hartree-Fock approach to calculate spectral parameters of the W$^{39+}$ ion, incorporating relativistic effects and electron correlations, and compares results with experimental and theoretical data.

Contribution

It introduces a quasirelativistic Hartree-Fock method tailored for heavy ions, providing new spectral data for tungsten ion W$^{39+}$ with relativistic and correlation effects included.

Findings

Spectroscopic parameters for W$^{39+}$ configurations are calculated.

Results show good agreement with experimental measurements.

The method effectively accounts for relativistic and correlation effects.

Abstract

The ab initio quasirelativistic Hartree-Fock method developed specifically for the calculation of spectral parameters of heavy atoms and highly charged ions is used to derive spectral data for the 4s$^2$4p$^5$, 4s$^2$4p$^4$4d and 4s4p$^6$ configurations of the multicharged tungsten ion W$^{39+}$. The relativistic effects are taken into account in the Breit-Pauli approximation for the quasirelativistic Hartree-Fock radial orbitals. The configuration interaction method is applied to include the electron correlation effects. Produced data are compared with existing experimental measurements and theoretical calculations.