Semi-Empirical Oscillator Strengths and Lifetimes for the P II Spectrum
DOI:
https://doi.org/10.22481/exon.v12i1.20506Keywords:
energy levels, P II spectrum, atomic transitions, oscillator strengths, lifetimesAbstract
In this work, the values of oscillator strengths and lifetimes in the spectrum P II are calculated. The semi-empirical method of using the values of experimental wavelengths and energy levels according to previous spectral analysis and data compilation work and are now used as the basis for calculations of fitting of the electrostatic parameters using Cowan codes in the energy matrix that represents the Hamiltonian of the ion. A Hartree-Fock relativistic (HFR) multiconfigurational approach is used and the parameters are now adjusted being optimized by a least-squares procedure, in order to improve the adjustment to experimental energy levels by the least squares method in both parities. The method produces simulated values that are difficult to obtain experimentally of oscillator strengths (gf) for known spectral lines and that in agreement with intensity observations, and lifetimes for energy levels, that are closer to the experimental ones.
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