Effective collision strengths between Mg I and electrons

TL;DR

This paper provides quantum mechanical data for 369 electron collision transitions in Mg I across a wide temperature range, improving non-LTE spectral line modeling accuracy.

Contribution

It offers new, detailed quantum mechanical collision data for Mg I electrons, addressing uncertainties in non-LTE spectral line computations.

Findings

Quantum mechanical data for 369 Mg I transitions

Effective collision strengths provided for 500-20000 K

Enhances accuracy of non-LTE spectral modeling

Abstract

The treatment of the inelastic collisions with electrons and hydrogen atoms are the main source of uncertainties in non-Local Thermodynamic Equilibrium (LTE) spectral line computations. We report, in this research note, quantum mechanical data for 369 collisional transitions of \ion{Mg}{I} with electrons for temperatures comprised between 500 and 20000~K. We give the quantum mechanical data in terms of effective collision strengths, more practical for non-LTE studies.