Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006a%26a...460..959a&link_type=abstract
Astronomy and Astrophysics, Volume 460, Issue 3, December IV 2006, pp.959-965
Astronomy and Astrophysics
Astrophysics
7
Atomic Data, Atomic Processes
Scientific paper
Aims.In this paper we report calculations for energy levels and radiative rates for transitions in Ni XIX. Methods: .The General purpose Relativistic Atomic Structure Package (grasp) has been adopted for the calculation of energy levels and radiative rates. Results: .Energies for the lowest 89 levels from the (1s^2) 2s^22p^6, 2s^22p^53ℓ, 2s2p^63ℓ, 2s^22p^54ℓ and 2s2p^64ℓ configurations of Ni XIX, are reported. Additionally, radiative rates, oscillator strengths, and line strengths are reported for all electric dipole (E1), magnetic dipole (M1), electric quadrupole (E2), and magnetic quadrupole (M2) transitions among these levels. Comparisons are made with the available results in the literature, and the accuracy of the present data is assessed. Finally, lifetimes for all excited levels are listed, and comparisons made with earlier available theoretical results.
Aggarwal Kanti M.
Keenan Francis P.
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