Excitation energies and transition probabilities for the forbidden transitions of helium-like ions

Details Excitation energies and transition probabilities for the forbidden transitions of helium-like ions Excitation energies and transition probabilities for the forbidden transitions of helium-like ions

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...298..844k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 298, Nov. 15, 1985, p. 844-847.

Physics

Atomic Physics

11

Atomic Excitations, Atomic Physics, Forbidden Transitions, Helium Ions, Transition Probabilities, Fusion, Ground State, Hartree Approximation, Plasma Physics, Positive Ions

Scientific paper

Excitation energies and transition probabilities for the forbidden transitions 1s2:1S to 1sns:3S (n = 2, 3, 4), have been calculated for a number of helium-like ions: N(5+), O(6+), Ne(8+), Mg(10+), Al(11+), Si(12+), S(14+), Cl(15+), Ar(16+), and Ti(20+), which are of considerable interest in astrophysical observations and in laboratory experiments involving fusion plasmas. Nonrelativistic time-dependent coupled Hartree-Fock theory has been adopted with a simple but effective form of the perturbation operator to induce such excitations. Excitation energies and transition probabilities are in reasonably good agreement with the existing experimental and theoretical data.

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