Abstract

The observed levels of the configuration 3d 4f of Fe vii are compared with theoretical formulas which include the electrostatic interaction and the spin–orbit interaction. The least-squares calculation gives a mean error of 79 cm−1 and permits a critical discussion of the reliability of the experimental levels.

© 1966 Optical Society of America

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References

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  1. E. Alexander, U. Feldman, B. S. Fraenkel, and S. Hoory, J. Opt. Soc. Am. 56, 65 (1966).
    [Crossref]
  2. E. Alexander, U. Feldman, and B. S. Fraenkel, J. Quant. Spectry. & Radiative Transfer 4, 501 (1964).
    [Crossref]
  3. W. M. Cady, Phys. Rev. 43, 324 (1933).
    [Crossref]
  4. I. S. Bowen and B. Edlén, Nature 143, 374 (1939).
    [Crossref]
  5. C. E. Moore, N.B.S. Circ. 467, Vol.  II (1952).

1966 (1)

E. Alexander, U. Feldman, B. S. Fraenkel, and S. Hoory, J. Opt. Soc. Am. 56, 65 (1966).
[Crossref]

1964 (1)

E. Alexander, U. Feldman, and B. S. Fraenkel, J. Quant. Spectry. & Radiative Transfer 4, 501 (1964).
[Crossref]

1952 (1)

C. E. Moore, N.B.S. Circ. 467, Vol.  II (1952).

1939 (1)

I. S. Bowen and B. Edlén, Nature 143, 374 (1939).
[Crossref]

1933 (1)

W. M. Cady, Phys. Rev. 43, 324 (1933).
[Crossref]

Alexander, E.

E. Alexander, U. Feldman, B. S. Fraenkel, and S. Hoory, J. Opt. Soc. Am. 56, 65 (1966).
[Crossref]

E. Alexander, U. Feldman, and B. S. Fraenkel, J. Quant. Spectry. & Radiative Transfer 4, 501 (1964).
[Crossref]

Bowen, I. S.

I. S. Bowen and B. Edlén, Nature 143, 374 (1939).
[Crossref]

Cady, W. M.

W. M. Cady, Phys. Rev. 43, 324 (1933).
[Crossref]

Edlén, B.

I. S. Bowen and B. Edlén, Nature 143, 374 (1939).
[Crossref]

Feldman, U.

E. Alexander, U. Feldman, B. S. Fraenkel, and S. Hoory, J. Opt. Soc. Am. 56, 65 (1966).
[Crossref]

E. Alexander, U. Feldman, and B. S. Fraenkel, J. Quant. Spectry. & Radiative Transfer 4, 501 (1964).
[Crossref]

Fraenkel, B. S.

E. Alexander, U. Feldman, B. S. Fraenkel, and S. Hoory, J. Opt. Soc. Am. 56, 65 (1966).
[Crossref]

E. Alexander, U. Feldman, and B. S. Fraenkel, J. Quant. Spectry. & Radiative Transfer 4, 501 (1964).
[Crossref]

Hoory, S.

E. Alexander, U. Feldman, B. S. Fraenkel, and S. Hoory, J. Opt. Soc. Am. 56, 65 (1966).
[Crossref]

Moore, C. E.

C. E. Moore, N.B.S. Circ. 467, Vol.  II (1952).

J. Opt. Soc. Am. (1)

E. Alexander, U. Feldman, B. S. Fraenkel, and S. Hoory, J. Opt. Soc. Am. 56, 65 (1966).
[Crossref]

J. Quant. Spectry. & Radiative Transfer (1)

E. Alexander, U. Feldman, and B. S. Fraenkel, J. Quant. Spectry. & Radiative Transfer 4, 501 (1964).
[Crossref]

N.B.S. Circ. 467 (1)

C. E. Moore, N.B.S. Circ. 467, Vol.  II (1952).

Nature (1)

I. S. Bowen and B. Edlén, Nature 143, 374 (1939).
[Crossref]

Phys. Rev. (1)

W. M. Cady, Phys. Rev. 43, 324 (1933).
[Crossref]

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Tables (2)

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Table I Fe vii 3d 4f—Parameters of the various stages of the calculation.

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Table II Fe vii—Observed and calculated energy levels of the configuration 3d 4f.

Equations (1)

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Δ = [ δ i 2 / ( n - m ) ] 1 2 ,