Oscillator Strengths for Ultraviolet Transitions in P II -The Multiplet at 1308 Å

Abstract

We report lifetimes, branching fractions, and the resulting oscillator strengths for transitions within the P II multiplet (3s23p2 3P - 3s3p3 3Po) at 1308 Å. These comprehensive beam-foil measurements, which are the most precise set currently available experimentally, resolve discrepancies involving earlier experimental and theoretical results. Interstellar phosphorus abundances derived from λ1308 can now be interpreted with greater confidence. In the course of our measurements, we also obtained an experimental lifetime for the 3p4s 3P0o level of P IV. This lifetime agrees well with the available theoretical calculation.

arXiv comment10 pages, 3 figures

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Cited by in corpus (6)

• The Distribution of Metallicities in the Local Galactic Interstellar Medium
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• A Reexamination of Phosphorus and Chlorine Depletions in the Diffuse Interstellar Medium
• Lifetimes and Oscillator Strengths for Ultraviolet Transitions in Neutral Chlorine
• Absorption line abundances in the SMC-like galaxy UGC 5282: evidence for ISM dilution from inflows on kiloparsec scales
• Investigating chemical variations between interstellar gas clouds in the Solar neighbourhood