124 citations · 440 across the 7 of their papers we have counts for
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Measuring chemical evolution and gravitational dependence of αusing ultraviolet Fe V and Ni V transitions in white-dwarf spectra
A. Ong, J. C. Berengut, V. V. Flambaum
In this paper, we present the details of the ab initio high-precision configuration interaction and many-body perturbation theory calculations that were used in a previous work to…
Highly charged ions with E1, M1, and E2 transitions within laser range
J. C. Berengut, V. A. Dzuba, V. V. Flambaum +1
Level crossings in the ground state of ions occur when the nuclear charge Z and ion charge Z_ion are varied along an isoelectronic sequence until the two outermost shells are nearl…
Optical transitions in highly-charged californium ions with high sensitivity to variation of the fine-structure constant
J. C. Berengut, V. A. Dzuba, V. V. Flambaum +1
We study electronic transitions in highly-charged Cf ions that are within the frequency range of optical lasers and have very high sensitivity to potential variations in the fine-s…
Hole transitions in multiply-charged ions for precision laser spectroscopy and searching for alpha-variation
J. C. Berengut, V. A. Dzuba, V. V. Flambaum +1
We consider transitions of electron holes (vacancies in otherwise filled shells of atomic systems) in multiply-charged ions that, due to level-crossing of the holes, have frequenci…