Lifetimes and Oscillator Strengths for Ultraviolet Transitions in Neutral Chlorine

Lifetimes and Oscillator Strengths for Ultraviolet Transitions in Neutral Chlorine

We present lifetime measurements using beam-foil techniques for radiative transitions from the 3p4(1S)4s 2S1/2, 3p4(3P)5 , and 3p4(3P)3d 2F5/2 levels in Cl I and the corresponding results of the oscillator strengths for transitions at 1004.68, 1079.88, 1090.73, and 1094.77 , respectively. We compare...

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Veröffentlicht in:The Astrophysical journal 2019-12, Vol.887 (1), p.14
Hauptverfasser: Alkhayat, R. B., Irving, R. E., Federman, S. R., Ellis, D. G., Cheng, S.
Format: Artikel
Sprache:eng
Schlagworte:
Astrophysics
Atomic physics
Chlorine
Foils
Interstellar absorption
Interstellar abundances
Laboratory astrophysics
Oscillator strengths
Radiative processes
Transition probabilities
Ultraviolet astronomy
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Zusammenfassung:We present lifetime measurements using beam-foil techniques for radiative transitions from the 3p4(1S)4s 2S1/2, 3p4(3P)5 , and 3p4(3P)3d 2F5/2 levels in Cl I and the corresponding results of the oscillator strengths for transitions at 1004.68, 1079.88, 1090.73, and 1094.77 , respectively. We compare our experimental results with available theoretical calculations and astronomical observations in an effort to resolve discrepancies among them.
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/ab4db6