The Oscillator Strengths of the C[TINF]2[/TINF] Phillips System
- 1 September 1995
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 450 (1) , L31
- https://doi.org/10.1086/309656
Abstract
Radiative lifetimes of the C2 A1IIu-X1Σ+g (Phillips) system have been remeasured using the High-Frequency Deflection technique. Using catalyzer gases, it is shown that collisional transfer effects are present which tend to lengthen the registered lifetimes, yielding too low f-values. The remeasured value fA − X2,0 = (1.36 ± 0.15) × 10-3 is 45%-75% larger than earlier laboratory experiments and agrees within the error limits with recent results obtained from spectra of ζ Oph as well as ab initio calculations.Keywords
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