Radiative properties of Cu-isoelectronic As, Se and Br ions for astrophysical applications

TL;DR

This paper provides precise radiative data for Cu-isoelectronic As, Se, and Br ions, crucial for astrophysical analysis, using advanced relativistic many-body methods to improve upon previous estimates.

Contribution

It offers the first comprehensive set of radiative properties for these ions using an all-order relativistic perturbative approach, filling a gap in astrophysical spectroscopy data.

Findings

Significant differences from earlier results in some transition data.

Enhanced accuracy of radiative parameters for astrophysical applications.

Useful data for analyzing phenomena in celestial bodies containing As, Se, and Br.

Abstract

We present precise radiative data of line strengths, transition probabilities and oscillator strengths for the allowed transitions among the $nS_{1/2}$, $nP_{1/2,3/2}$, $n'D_{3/2,5/2}$ and $n'F_{5/2,7/2}$ states with $n=4$ to $6$ and $n'=4,5$ of the Cu-isoelectronic As, Se and Br ions. Due to unavailability of precise observations of these spectroscopic data, their accurate estimations are of great interest and useful in analyzing various astrophysical phenomena undergoing inside the heavenly bodies that contain As, Se and Br elements. An all-order perturbative many-body method in the relativistic theory framework has been employed to determine the atomic wave functions, which are further used to estimate the above quantities with the uncertainties. We found significant differences between some of our results and results that are available earlier.