Radiative-lifetime measurements in Si II-Si V
- 21 February 1976
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 9 (3), 389-397
- https://doi.org/10.1088/0022-3700/9/3/007
Abstract
Radiative lifetimes have been measured for transitions in Si II to Si V in the vacuum ultraviolet region using the beam-foil technique. Lifetime results for Si II-IV transitions resolve existing discrepancies among previous measurements for these ions, and derived oscillator strengths reflect the effects of configuration interaction for several terms in Si III. The oscillator strength for the 1194 AA multiplet in Si II is the first experimental value for this transition that provides consistency with interstellar curves of growth determined recently from observations for the first time, and the first experimental lifetime results for this ion have been obtained.Keywords
This publication has 23 references indexed in Scilit:
- Interstellar absorption lines in the spectrum of zeta OphiuchiThe Astrophysical Journal, 1975
- Series perturbations in atomic spectra: Superposition-of-configurations calculations on Al I and Al IIPhysical Review A, 1974
- Radiative-lifetime and absolute-oscillator-strength studies for some resonance transitions of Si I, II, and IIIPhysical Review A, 1974
- A program for the extraction of radiative lifetimes from experimental beam-foil intensity decay dataComputer Physics Communications, 1974
- Beam-Foil Studies of Radiative Transitions and Lifetimes in Cl IV - Cl XPhysica Scripta, 1973
- Beam-foil lifetimes in the third period elements silicon, sulfur and argon in the vacuum ultravioletNuclear Instruments and Methods, 1973
- Spectrophotometric Results from the Copernicus Satellite. II. Composition of Interstellar CloudsThe Astrophysical Journal, 1973
- Spectrophotometric Results from the Copernicus Satellite. III. Ionization and Composition of the Intercloud MediumThe Astrophysical Journal, 1973
- Lifetime Measurements in Ar ii–Ar viiiJournal of the Optical Society of America, 1972
- Transition Integrals for Si IV and CaIIMathematical Proceedings of the Cambridge Philosophical Society, 1962