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K-shell X-ray energy and width resonances of Nitrogen and Oxygen Atoms

Energy positions and width resonances of nitrogen and oxygen atoms are reported using the Screening Constant per Unit Nuclear Charge (SCUNC) method. Calculations areperformed for the 1s2s22p3 [5,3S°] np 4P° and for the 1s2s22p3 [3D°, 3P°] np 4P° core-excited autoionizing resonances of atomic nitrogen converging respectively to the 5S° and 3S°, and to the 3D° and 3P° series limits of Nþ and for the 1s2s22p4 [2,4P°] np 3P° Rydberg series converging to the 1s 14 P° and 1s 12 P° series limits of atomic oxygen. The results obtained agree very well with available high-resolution K-edge spectra of atomic nitrogen and of atomic oxygen. The present calculations provide benchmark data for X-ray spectra in connections with the modeling of astrophysical systems.

Auteur(s) : I. Sakho, M. Sow, A.Wague
Pages : 82-86.
Année de publication : 2015
Revue : Radiation Physics and Chemistry
N° de volume : 110
Type : Article
Mise en ligne par : SOW Malick