The paper presents an integrated view of the population structure and its role in establishing
the ionization state of light elements in dynamic, finite density, laboratory and astrophysical …

Multiply charged ions of iron dominate the EUV spectrum of the solar corona. For the
interpretation of such spectra, data on both the atomic structure and the transition rate are …

Relativistic effects are of major importance for understanding the properties of heavier atoms
and molecules. Volumes I-III of Relativistic Theory of Atoms and Molecules constitute the …

We report calculations of energy levels and radiative rates for transitions among the lowest
116 fine-structure levels arising from the $ n\leqslant 5$ configurations in Be-like ions with …

Energy levels, with classifications and uncertainties, have been compiled for the spectra of
the neutral atom and all positive ions of potassium (Z= 19)⁠. Wavelengths with …

Electric-dipole intercombination and forbidden transitions have been optically observed with
ions circulating in a storage ring, and atomic lifetimes determined. For the level in the Be-like …

Energy levels, radiative processes and lifetimes are studied among the 98 lowest levels of
the 1s 2 2snl and 1s 2 2pnl (n= 2–4, l= 0–3) configurations of Rb XXXIV, Sr XXXV, Zr XXXVII …

The extreme-ultraviolet emission line (424 Å) of the intercombination 1s 2 2s 2 1 S 0–1s 2
2s2p 3 P 1 transition of Ar xv can potentially characterize the electron temperature of …

A large-scale, relativistic configuration-interaction (RCI) method has been developed for
precision calculations of transition oscillator strengths. It is based on the no-pair Hamiltonian …

The energy and lifetime of the metastable 3 D 2 level of radium play an important role in
planned experimental investigations of parity and time reversal violation. The …