Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.243..372m&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 243, April 1, 1990, p. 372-374. Research supported by t
Astronomy and Astrophysics
Astronomy
8
Atomic Excitations, Configuration Interaction, Electron Transitions, Fine Structure, Nickel, Transition Probabilities, Electron Energy, Electron Impact, Electron Scattering, Fluorine, Magnetic Dipoles
Scientific paper
Electric quadrupole and magnetic dipole transition probabilities for the 1s2 2s2 2p5 2P0(3/2) - 1s2 2s2 2p5 2P0(1/2) fine-structure transition in the Ni XX ground term have been calculated, using configuration-interaction wavefunctions within the Breit-Pauli approximation. Collision strengths for the excitation of this transition by electron-impact have also been calculated, using the R-matrix method within a 16-state close-coupling approximation in LS coupling. These collision strengths have been averaged over a Maxwellian velocity distribution of the incident electrons and have been tabulated over a wide range of electron temperatures.
Burke P. G.
Hibbert Alan
Le Dourneuf M.
Mohan Man
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