Abstract

Measurements of iron arc spectra have been made with Pachen-Runge spectrographs and a specially designed photoelectric photometer of the ac ratio type allowing continuous scanning and recording. The temperature and self-absorption present in different parts of the arc, and in the arc under different operating conditions, have been determined, and are presented for use in determining which lines are self-absorbed under given conditions. Some unexplained mechanism in the arc causes deviation from equilibrium values of the intensities of all lines within multiplet 68. This mechanism does not operate in the furnace. Corrected values are given for some ƒ values given in the literature. Additional measurements of the arc are now under way for the calculation of high-excitation ƒ values.

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  1. R. B. King, Astrophys. J. 95, 78 (1942).
  2. W. W. Carter, Phys. Rev. 76, 962 (1949).
  3. H. M. Crosswhite, Spectrochim. Acta 4, 122 (1950).
  4. F. K. Richtmeyer and E. H. Kennard, Introduction to Modern Physics (McGraw-Hill Book Company, Inc., NewYork, 1947).
  5. F. A. Jenkins and H. E. White, Fundamentals of Physical Optics (McGraw-Hill Book Company, Inc., New York, 1937), pp. 36–37.
  6. A. C. G. Mitchell and M. W. Zemansky, Resonance Radiation and Excited Atoms (The Macmillan Company, New York, 1934).
  7. A. Unsöld, Z. Astrophys. 24, 306 (1948).
  8. 8 L. H. Aller, Astrophysics: the Atmosphere of the Sun and Stars (Ronald Press, New York, 1953).
  9. R. D. Cowan and G. H. Dieke, Revs. Modern Phys. 20, 418 (1948).
  10. Forsythe and Worthing, Astrophys. J. 61, 146 (1925).
  11. R. W. Engstrom, J. Opt. Soc. Am. 37, 420 (1947).
  12. Lennart Huldt, Arch. Phys. 2, 353 (1950–1951).
  13. O. S. Duffendack and J. M. La Rue, J. Opt. Soc. Am. 31, 146 (1941).
  14. H. Hemmendinger, J. Opt. Soc. Am. 31, 150 (1941).
  15. George R. Harrison, J. Opt. Soc. Am. 17, 399 (1928).
  16. R. Mannkopf, Z. Physik 86, 161 (1933).
  17. L. S. Ornstein and H. Brinckman, Physica 1, 797 (1934).
  18. S. S. Penner and E. K. Bjönerud, "Experimental determination of rotational temperatures and concentrations of OH in flames from emission spectra," Technical Report No. 14 (Jet Propulsion Laboratory, California Institute of Technology, June 1954).
  19. Ornstein, Brinkman, and Beunes, Z. Physik 77, 72 (1932).

Aller, L. H.

8 L. H. Aller, Astrophysics: the Atmosphere of the Sun and Stars (Ronald Press, New York, 1953).

Bjönerud, E. K.

S. S. Penner and E. K. Bjönerud, "Experimental determination of rotational temperatures and concentrations of OH in flames from emission spectra," Technical Report No. 14 (Jet Propulsion Laboratory, California Institute of Technology, June 1954).

Brinckman, H.

L. S. Ornstein and H. Brinckman, Physica 1, 797 (1934).

Carter, W. W.

W. W. Carter, Phys. Rev. 76, 962 (1949).

Cowan, R. D.

R. D. Cowan and G. H. Dieke, Revs. Modern Phys. 20, 418 (1948).

Crosswhite, H. M.

H. M. Crosswhite, Spectrochim. Acta 4, 122 (1950).

Dieke, G. H.

R. D. Cowan and G. H. Dieke, Revs. Modern Phys. 20, 418 (1948).

Duffendack, O. S.

O. S. Duffendack and J. M. La Rue, J. Opt. Soc. Am. 31, 146 (1941).

Engstrom, R. W.

R. W. Engstrom, J. Opt. Soc. Am. 37, 420 (1947).

Harrison, George R.

George R. Harrison, J. Opt. Soc. Am. 17, 399 (1928).

Hemmendinger, H.

H. Hemmendinger, J. Opt. Soc. Am. 31, 150 (1941).

Huldt, Lennart

Lennart Huldt, Arch. Phys. 2, 353 (1950–1951).

Jenkins, F. A.

F. A. Jenkins and H. E. White, Fundamentals of Physical Optics (McGraw-Hill Book Company, Inc., New York, 1937), pp. 36–37.

Kennard, E. H.

F. K. Richtmeyer and E. H. Kennard, Introduction to Modern Physics (McGraw-Hill Book Company, Inc., NewYork, 1947).

King, R. B.

R. B. King, Astrophys. J. 95, 78 (1942).

La Rue, J. M.

O. S. Duffendack and J. M. La Rue, J. Opt. Soc. Am. 31, 146 (1941).

Mannkopf, R.

R. Mannkopf, Z. Physik 86, 161 (1933).

Mitchell, A. C. G.

A. C. G. Mitchell and M. W. Zemansky, Resonance Radiation and Excited Atoms (The Macmillan Company, New York, 1934).

Ornstein, L. S.

L. S. Ornstein and H. Brinckman, Physica 1, 797 (1934).

Penner, S. S.

S. S. Penner and E. K. Bjönerud, "Experimental determination of rotational temperatures and concentrations of OH in flames from emission spectra," Technical Report No. 14 (Jet Propulsion Laboratory, California Institute of Technology, June 1954).

Richtmeyer, F. K.

F. K. Richtmeyer and E. H. Kennard, Introduction to Modern Physics (McGraw-Hill Book Company, Inc., NewYork, 1947).

Unsöld, A.

A. Unsöld, Z. Astrophys. 24, 306 (1948).

White, H. E.

F. A. Jenkins and H. E. White, Fundamentals of Physical Optics (McGraw-Hill Book Company, Inc., New York, 1937), pp. 36–37.

Zemansky, M. W.

A. C. G. Mitchell and M. W. Zemansky, Resonance Radiation and Excited Atoms (The Macmillan Company, New York, 1934).

Other (19)

R. B. King, Astrophys. J. 95, 78 (1942).

W. W. Carter, Phys. Rev. 76, 962 (1949).

H. M. Crosswhite, Spectrochim. Acta 4, 122 (1950).

F. K. Richtmeyer and E. H. Kennard, Introduction to Modern Physics (McGraw-Hill Book Company, Inc., NewYork, 1947).

F. A. Jenkins and H. E. White, Fundamentals of Physical Optics (McGraw-Hill Book Company, Inc., New York, 1937), pp. 36–37.

A. C. G. Mitchell and M. W. Zemansky, Resonance Radiation and Excited Atoms (The Macmillan Company, New York, 1934).

A. Unsöld, Z. Astrophys. 24, 306 (1948).

8 L. H. Aller, Astrophysics: the Atmosphere of the Sun and Stars (Ronald Press, New York, 1953).

R. D. Cowan and G. H. Dieke, Revs. Modern Phys. 20, 418 (1948).

Forsythe and Worthing, Astrophys. J. 61, 146 (1925).

R. W. Engstrom, J. Opt. Soc. Am. 37, 420 (1947).

Lennart Huldt, Arch. Phys. 2, 353 (1950–1951).

O. S. Duffendack and J. M. La Rue, J. Opt. Soc. Am. 31, 146 (1941).

H. Hemmendinger, J. Opt. Soc. Am. 31, 150 (1941).

George R. Harrison, J. Opt. Soc. Am. 17, 399 (1928).

R. Mannkopf, Z. Physik 86, 161 (1933).

L. S. Ornstein and H. Brinckman, Physica 1, 797 (1934).

S. S. Penner and E. K. Bjönerud, "Experimental determination of rotational temperatures and concentrations of OH in flames from emission spectra," Technical Report No. 14 (Jet Propulsion Laboratory, California Institute of Technology, June 1954).

Ornstein, Brinkman, and Beunes, Z. Physik 77, 72 (1932).

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