Relative strengths of spectral lines with mixed vector couplings - Dipole transitions between LS and other couplings

Details Relative strengths of spectral lines with mixed vector couplings - Dipole transitions between LS and other couplings Relative strengths of spectral lines with mixed vector couplings - Dipole transitions between LS and other couplings

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apjs...74..819e&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 74, Nov. 1990, p. 819-829. Research supported by the Universidad

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3

Electric Dipoles, Heavy Elements, Line Spectra, Planetary Nebulae, Transition Probabilities, Optical Thickness, Quantum Numbers

Scientific paper

The relative strength of spectral lines of electric dipole transitions is calculated in which one of the states is described with the LS coupling scheme and the other is described with the LK, j-K, or j-j coupling scheme. Selection rules for each type of transition are described. As examples, tables are given for transitions of the type 2P nl - 2P m(l-prime) for 1 = l or less, l-prime = 4 or less, and any n and m for the LS-LK and LS-j-K cases. The results can be compared with observed relative intensities of optically thin spectral lines between states with similar quantum numbers. As examples, the results for transitions in the array 3d-4f of N II are compared with observations of planetary nebulae.

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