2 papers
physics.atom-ph2025
H, He-like recombination spectra VI: Quadrupole -changing collisions
E. Deliporanidou, N. R. Badnell, P. J. Storey +2
We have developed a simple analytic formula that well describes quadrupole -changing collisions of the form , as confirmed by comparison with numerical quant…
physics.atom-ph2025
UK APAP R-matrix electron-impact excitation cross-sections for modelling laboratory and astrophysical plasma
G. Del Zanna, G. Liang, J. Mao +1
Systematic R-matrix calculations of electron-impact excitation for ions of astrophysical interest have been performed since 2007 for many iso-electronic sequences as part of the UK…