Open AccessRelativistic effects on line strengths for transitions in the hydrogenic isoelectronic sequence
Author(s) -
S.M. Younger,
A. W. Weiss
Publication year - 1975
Publication title -
journal of research of the national bureau of standards. section a. physics and chemistry
Language(s) - English
Resource type - Journals
eISSN - 2376-5704
pISSN - 0022-4332
DOI - 10.6028/jres.079a.023
Subject(s) - atomic physics , ion , ionization , physics , relativistic quantum chemistry , hydrogen atom , line (geometry) , wave function , electron , dirac (video compression format) , atom (system on chip) , electron ionization , hydrogen , sequence (biology) , hydrogen like atom , chemistry , quantum mechanics , group (periodic table) , biochemistry , geometry , mathematics , computer science , neutrino , embedded system , total angular momentum quantum number , angular momentum , angular momentum coupling
Relativistic line strengths have been computed for a large number of transitions using Dirac wave functions for the one-electron, hydrogen-like ions. As expected, the results indicate that relativistic effects are quite small for low stages of ionization. However, in general, they also remain small throughout a large portion of the isoelectronic sequence, becoming typically of the order of 10 percent in the vicinity of Z = 50, after which they grow quite rapidly. This suggests that for multielectron ions a basically nonrelativistic theory might well be adequate for light atom isoelectronic ions through as much as 30 or 40 stages of ionization.