Accurate estimations of electromagnetic transitions of Sn IV for stellar and interstellar media

TL;DR

This paper presents highly accurate ab initio calculations of electromagnetic transition parameters for Sn IV, aiding astrophysical observations and plasma diagnostics by providing reliable data on low-lying state transitions.

Contribution

It introduces advanced relativistic coupled-cluster calculations for Sn IV, improving the accuracy of transition data by incorporating experimental energies and electron correlation effects.

Findings

Transition wavelengths mostly in infrared region.

Results agree well with available experimental data.

Data useful for astrophysical and laboratory plasma analysis.

Abstract

Here we report on accurate ab initio calculations to study astrophysically important electromagnetic transition parameters among different low-lying states of Sn IV. Our ab initio calculations are based on the sophisticated relativistic coupled-cluster theory, which almost exhausts many important electron correlations. To establish the accuracy of the calculations, we compare our results with the available experiments and estimates the transition amplitudes in length and velocity gauged forms. Most of these allowed and forbidden transition wavelengths lie in the infrared region, and they can be observed in the different cool stellar and interstellar media. For the improvement of uncertainty, we use experimental energies to the estimations of the above transition parameters. The presented data will be helpful to find the abundances of the ion in different astrophysical and laboratory plasma.