Influence of Subvalence nd^10 Shell on the Excitation of Resonance Lines of Al^+ Subgroup Ions

Details Influence of Subvalence nd^10 Shell on the Excitation of Resonance Lines of Al^+ Subgroup Ions Influence of Subvalence nd^10 Shell on the Excitation of Resonance Lines of Al^+ Subgroup Ions

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008pobeo..84..119g&link_type=abstract

Publications of the Astronomical Observatory of Belgrade, vol 84, pp. 119-122

Astronomy and Astrophysics

Astronomy

Scientific paper

The results of comparative analysis of energy dependences of effective cross-sections for electron-impact excitation of resonance nsnp ^1P_1 -> ns^2 ^1S_0 transitions in ions of Al^+ subgroup are presented. The values of excitation cross-sections for the Ga^+, In^+ and Tl^+ ion resonance lines are found to be comparable in the entire energy range under investigation. The increase of the atomic number of an ion is shown to result in the increase of contribution of the resonance processes into the effective electron-impact excitation cross-sections for resonance line due to the increasing role of relativistic and correlation effects. Correlations not only within closed s^2 and d^10 shells, but also between them are shown to be significant.

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