Abstract

The spectrum of V v has been observed by using a vacuum sliding spark at 1000-A peak current. Fifty-nine lines in the region 480–8500 Å have been observed and interpreted as transitions among 29 levels, 19 of which are new. The ionization energy is determined as 526 524 ± 5 cm<sup>-1</sup>. An isoelectronic comparison confirms the inversion of the 3<i>p</i><sup>6</sup>4ƒ<sup>2</sup><i>F</i><sub>5/2, 7/2</sub>° levels as being caused by their interaction with those of the <sup>2</sup><i>F</i>° term in the 3<i>p</i><sup>5</sup> 3<i>d</i><sup>2</sup> configuration.

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  1. R. C. Gibbs and H. E. White, phys. Rev. 33, 157 (1929).
  2. L. Iglesias, J. Res. Nat. Bur. Srand. U. S. 72A, 295 (1968).
  3. A. H. Gabriel, B. C. Fawcett, and C. Jordan, Proc. Phys. Soc. Lond. 87, 825 (1966).
  4. C. H. H. Van Deurzen and J. G. Conway, Appl. Spectrosc. 28 (1974).
  5. C. H. H. Van Deurzen, Ph.D. thesis, Lawrence Berkeley Laboratory Report No. LBL-1657 (1973).
  6. C. E. Moore, Atomic Energy Levels, I, Natl. Bur. Stand. (U. S.) Circ. 467 (U. S. Government Printing Office, Washington, D. C., 1949).
  7. B. Edlén and P. Risberg, Ark. Fys. 10, 553 (1956).
  8. C. H. H. Van Deurzen, J. G. Conway, and S. P. Davis, J. Opt. Soc. Am. 63, 158 (1973).
  9. The Ti IV analysis was kindly supplied by B. Edlén (1972).
  10. R. D. Cowan, Astrophys. J. 147, 377 (1967).
  11. E. Alexander, U. Feldman, and B. S. Fraenkel, J. Opt. Soc. Am. 55, 650 (1965).

Alexander, E.

E. Alexander, U. Feldman, and B. S. Fraenkel, J. Opt. Soc. Am. 55, 650 (1965).

Conway, J. G.

C. H. H. Van Deurzen, J. G. Conway, and S. P. Davis, J. Opt. Soc. Am. 63, 158 (1973).

C. H. H. Van Deurzen and J. G. Conway, Appl. Spectrosc. 28 (1974).

Cowan, R. D.

R. D. Cowan, Astrophys. J. 147, 377 (1967).

Davis, S. P.

C. H. H. Van Deurzen, J. G. Conway, and S. P. Davis, J. Opt. Soc. Am. 63, 158 (1973).

Edlén, B.

The Ti IV analysis was kindly supplied by B. Edlén (1972).

B. Edlén and P. Risberg, Ark. Fys. 10, 553 (1956).

Fawcett, B. C.

A. H. Gabriel, B. C. Fawcett, and C. Jordan, Proc. Phys. Soc. Lond. 87, 825 (1966).

Feldman, U.

E. Alexander, U. Feldman, and B. S. Fraenkel, J. Opt. Soc. Am. 55, 650 (1965).

Fraenkel, B. S.

E. Alexander, U. Feldman, and B. S. Fraenkel, J. Opt. Soc. Am. 55, 650 (1965).

Gabriel, A. H.

A. H. Gabriel, B. C. Fawcett, and C. Jordan, Proc. Phys. Soc. Lond. 87, 825 (1966).

Gibbs, R. C.

R. C. Gibbs and H. E. White, phys. Rev. 33, 157 (1929).

Iglesias, L.

L. Iglesias, J. Res. Nat. Bur. Srand. U. S. 72A, 295 (1968).

Jordan, C.

A. H. Gabriel, B. C. Fawcett, and C. Jordan, Proc. Phys. Soc. Lond. 87, 825 (1966).

Moore, C. E.

C. E. Moore, Atomic Energy Levels, I, Natl. Bur. Stand. (U. S.) Circ. 467 (U. S. Government Printing Office, Washington, D. C., 1949).

Risberg, P.

B. Edlén and P. Risberg, Ark. Fys. 10, 553 (1956).

Van Deurzen, C. H. H.

C. H. H. Van Deurzen, J. G. Conway, and S. P. Davis, J. Opt. Soc. Am. 63, 158 (1973).

C. H. H. Van Deurzen, Ph.D. thesis, Lawrence Berkeley Laboratory Report No. LBL-1657 (1973).

C. H. H. Van Deurzen and J. G. Conway, Appl. Spectrosc. 28 (1974).

White, H. E.

R. C. Gibbs and H. E. White, phys. Rev. 33, 157 (1929).

Other (11)

R. C. Gibbs and H. E. White, phys. Rev. 33, 157 (1929).

L. Iglesias, J. Res. Nat. Bur. Srand. U. S. 72A, 295 (1968).

A. H. Gabriel, B. C. Fawcett, and C. Jordan, Proc. Phys. Soc. Lond. 87, 825 (1966).

C. H. H. Van Deurzen and J. G. Conway, Appl. Spectrosc. 28 (1974).

C. H. H. Van Deurzen, Ph.D. thesis, Lawrence Berkeley Laboratory Report No. LBL-1657 (1973).

C. E. Moore, Atomic Energy Levels, I, Natl. Bur. Stand. (U. S.) Circ. 467 (U. S. Government Printing Office, Washington, D. C., 1949).

B. Edlén and P. Risberg, Ark. Fys. 10, 553 (1956).

C. H. H. Van Deurzen, J. G. Conway, and S. P. Davis, J. Opt. Soc. Am. 63, 158 (1973).

The Ti IV analysis was kindly supplied by B. Edlén (1972).

R. D. Cowan, Astrophys. J. 147, 377 (1967).

E. Alexander, U. Feldman, and B. S. Fraenkel, J. Opt. Soc. Am. 55, 650 (1965).

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