X-ray and ultraviolet (UV) observations of the outer solar atmosphere have been used for
many decades to measure the fundamental parameters of the solar plasma. This review …

We describe the latest release of AtomDB, version 2.0. 2, a database of atomic data and a
plasma modeling code with a focus on X-ray astronomy. This release includes several major …

The CHIANTI spectral code consists of an atomic database and a suite of computer
programs to calculate the optically thin spectrum of astrophysical objects and carry out …

CHIANTI is an atomic database and software package for modeling emission lines and
continua from hot astrophysical plasmas. It is freely available to all researchers and has …

Abstract We describe the Breit–Pauli distorted wave (BPDW) approach for the electron-
impact excitation of atomic ions that we have implemented within the autostructure code …

We present electron collision strengths and their thermally averaged values for the nebular
forbidden lines of the astronomically abundant doubly ionized oxygen ion, O2+, in an …

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 …

The CHIANTI atomic database contains atomic energy levels, wavelengths, radiative
transition probabilities, and electron excitation data for a large number of ions of …

We present results for the electron-impact excitation of all Ne-like ions from Na+ to Kr 26+
obtained using the intermediate-coupling frame transformation R-matrix approach. For each …

Aims. Emission lines from ions in the Mg-like iso-electronic sequence can be used as
reliable diagnostics of temperature and density of astrophysical and fusion plasmas over a …