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Oscillator strengths for and transitions in the silicon sequence (KVI - XeXLI) have been calculated using the Relativistic Quantum Defect Orbital (RQDO) method, with and without explicit inclusion of core-valence correlation, and the multiconfigurational Dirac-Fock (MCDF) approach. Our f -values, which are of interest in astrophysics and fusion plasma research, are compared with other theoretical results in the cases for which these are available.

Oscillator strengths in the silicon sequence: Relativistic Quantum Defect Orbital and Multiconfigurational Dirac-Fock calculations