Physics – Atomic Physics
Scientific paper
Jun 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ycat..34880365a&link_type=abstract
VizieR On-line Data Catalog: J/A+A/488/365. Originally published in: 2008A&A...488..365A
Physics
Atomic Physics
Atomic Physics
Scientific paper
In this paper we report electron impact collision strengths and excitation rates for transitions among the lowest 89 levels of NiXIX.
The Dirac atomic R-matrix code (DARC) is adopted for the calculations of collision strengths and subsequently the effective collision strengths.
Collision strengths for resonance transitions among 89 levels arising from the (1s2) 2s22p6, 2s22p53l, 2s2p63l, 2s22p54l, and 2s2p64l configurations of NiXIX are reported over a wide energy range below 250Ryd. Additionally, effective collision strengths for all 3916 transitions among the 89 levels are listed over a wide temperature range below 107K. Comparisons are made among different calculations and the accuracy of the data is assessed. Finally, comparisons between theoretical and experimental intensity ratios of some prominent lines of NiXIX are discussed.
(3 data files).
Aggarwal Kanti M.
Keenan Francis P.
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