Photoionization of the ground1
S
e and twenty lowest excited states of the Ne-like Fe16+ |
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Authors: | M Mohan M Le Dourneuf Vinod Prasad A Kumar |
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Institution: | (1) Department of Physics and Astrophysics, University of Delhi, 110 007 Delhi, India;(2) Observatoire de Paris, Department “Atomes et molecules in astrophysique’, Unite Propre de Recherche n° 261 du CNRS, 92195 Meudon, France |
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Abstract: | TheR-matrix method is used to calculate cross-sections for the photoionization of Ne-like Fe16+ from ground 2s
22p
61
S
e and excited states belonging to 2s2p
6 3l and 2s
22p
5 3l configurations. Configuration interaction wavefunctions are used to represent two target states of Fe17+ ion retained in theR-matrix expansion. The cross-sections are obtained as a function of kinetic energy (ε
k) of the ejected electron from 10 to 24 Ry. For low kinetic energy the cross-sections show series of Rydberg states which
converge onto2
S
e threshold Fe17+. The calculations are carried out in the LS coupling. |
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Keywords: | Photoionization configuration-interaction R-matrix method |
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