What question did this study set out to answer?

To measure the absolute oscillator strengths (f-values) for key resonance transitions of chromium and nickel using the method of total absorption.

May 1, 1951The Astrophysical Journal

Absolute Oscillator Strengths of Chromium and Nickel.

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To measure the absolute oscillator strengths (f-values) for key resonance transitions of chromium and nickel using the method of total absorption.
Measured absolute nf-values via total absorption for the chromium resonance triplet (4290, 4275, and 4254 Å) and three nickel transitions (3461.7, 3524.5, and 3414.8 Å).
Compared experimental absorption data against established vapor-pressure determinations for both elements.
Fitted newly derived absolute values to 134 previously published relative gf-values for nickel transitions.
Assigned tentative absolute f-values for chromium transitions: f(4290) = 0.0068, f(4275) = 0.0097, and f(4254) = 0.0122, noting discrepancies with existing chromium vapor-pressure data.
Obtained absolute f-values for nickel transitions corroborating vapor-pressure data: f(3461.7) = 0.0093, f(3524.5) = 0.0183, and f(3414.8) = 0.0171, with a probable error of 10 percent.
Established a reduction factor of 2.55 × 10⁻⁴ to scale 134 relative nickel gf-values directly to absolute values.

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Implication

Absorption spectroscopy demonstrates absolute oscillator strengths in chromium and nickel, providing a calibration scale for relative transition probabilities.

Cite This Study

F. B. Estabrook (1951) studied this question.

synapsesocial.com/papers/6aa3cd4a229fb590e7c61a9a https://doi.org/10.1086/145437

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Implication

Absorption spectroscopy demonstrates absolute oscillator strengths in chromium and nickel, providing a calibration scale for relative transition probabilities.

Absolute Oscillator Strengths of Chromium and Nickel.

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Implication

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Absolute Oscillator Strengths of Chromium and Nickel.

Key Points

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Implication

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