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Energy Levels and Spectra of the Li I and Be I Isoelectronic Sequences in the Fourth Row

Published online by Cambridge University Press:  12 April 2016

S. Goldsmith ,
U. Feldman ,
L. Oren  and
L. Cohen
S. Goldsmith
Affiliation:
Dept. of Physics and Astronomy, Tel-Aviv University, Ramat-Aviv, Israel
U. Feldman
Affiliation:
Dept. of Physics and Astronomy, Tel-Aviv University, Ramat-Aviv, Israel
L. Oren
Affiliation:
Dept. of Physics and Astronomy, Tel-Aviv University, Ramat-Aviv, Israel
L. Cohen
Affiliation:
Dept. of Physics and Astronomy, Tel-Aviv University, Ramat-Aviv, Israel

Extract

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In the spectra of highly ionized atoms, lines corresponding to different degrees of ionization appear simultaneously on the same region of the photographic plate. Many difficulties are encountered in experimental assignment of the lines to the ionization they correspond to. As a result of this there is a special significance in exact calculations of energy levels. An accurate determination by some theoretical procedure can solve the problem of ionization differentiation.

Throughout this work we present theoretical calculations of energy levels of d and p electrons for ions of the fourth row in the isoelectronic sequences of Li i, Be i. We have also calculated the splitting of the various levels.

Type
Section II / Excitation and Ionization: Theory and Experiments
Information
International Astronomical Union Colloquium , Volume 14: Special Issue: Ultraviolet and X-Ray Spectroscopy of Astrophysical and Laboratory Plasmas , November 1972 , pp. 560
Copyright
Copyright © Reidel 1972