| Issue |
A&A
Volume 577, May 2015
|
|
|---|---|---|
| Article Number | A113 | |
| Number of page(s) | 9 | |
| Section | Atomic, molecular, and nuclear data | |
| DOI | https://doi.org/10.1051/0004-6361/201525914 | |
| Published online | 13 May 2015 | |
Research Note
Effective collision strengths between Mg i and electrons
1 Institut d’Astronomie et d’Astrophysique, Université Libre de Bruxelles, CP 226, Boulevard du Triomphe, 1050 Brussels, Belgium
e-mail: tmerle@ulb.ac.be
2 Université de Nice Sophia-Antipolis, Laboratoire Lagrange, UMR 7293 CNRS, OCA, CS34229, 06304 Nice Cedex 4, France
3 Department of Physics and Astronomy, Drake University, Des Moines, IA 50311, USA
Received: 17 February 2015
Accepted: 13 March 2015
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 Mg i with electrons for temperatures comprised between 500 and 20 000 K. We give the quantum mechanical data in terms of effective collision strengths, more practical for non-LTE studies.
Key words: atomic data / atomic processes / line: formation / line: profiles
© ESO, 2015
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