E2-transition probabilities for NiXVIII |
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| Authors: | Hasi Ray |
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| Institution: | (1) Indian Institute of Astrophysics, Koramangala, Bangalore, 560034, India |
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| Abstract: | Accurate theoretical data for the transition probabilities are highly demanding in astrophysics and in the study of plasma
in astrophysical objects and fusion devices. Na-like highly stripped ions of iron group, specially NiXVIII is very important
in this respect. A highly improved basis in a relativistic many-body coupled-cluster method (CCM) to include correlation properly
is employed to calculate excitation energies, the electric quadrupole (E2) transition line strengths and transition probabilities
for NiXVIII. The effect of correlation is studied thoroughly. The present improved data for different atomic/ionic properties
are compared with the available theoretical and/or experimental data and they are in agreement. Some E2 transition data are
reported for the first time.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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| Keywords: | E2-transition relativistic stellar chemical composition astrophysical plasma fusion device |
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