Abstract

The relative intensities of the lines in 26 of the stronger multiplets of the spectrum of normal titanium, Ti I, and in 8 of the stronger multiplets due to the singly ionized atom, Ti II, were measured by a general method of photographic photometry which is described in detail. In Ti , 58% of the multiplets were found to obey the intensity formulas to well within 5%, while in the 42% of abnormal multiplets, 71% of the lines were found normal, with 16% abnormally weak and 13% abnormally strong. In Ti II, 62% of the multiplets measured were normal, while of the abnormal 38%, 61% of the lines were normal, with 21% abnormally weak and 18% abnormally strong. Of all the lines measured, 86% appeared normal in intensity, while 7.6% were too weak and 6.4% were too strong. The departures from the predicted intensities are often fairly large, generally being of the order of 10% to 40%. No definite correlation was found between intensity abnormalities and depatures from Lande’s interval rule or the normal Zeeman patterns.

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  1. H. N. Russell, Astrophysical Journal, 66, pp. 283–328, 347–438; 1927.
  2. For outlines of methods, and bibliography, seeL. S. Ornstein, Proc. Phys. Soc. London, 37, p. 334; 1925.H. B. Dorgelo, Phys. ZS., 26, p. 756; 1925.G. M. B. Dobson, I. O. Griffith and D. N. Harrison: Photographic Photometry, Clarendon Press, 1926.
  3. R. de L. Kronig, ZS. f. Phys., 31, p. 885; 33, p. 261; 1925.Sommerfeld and Hönl, Sitz. Preuss. Akad. Wiss., 9, p. 141; 1925.H. N. Russell, Proc. Nat. Acad. Sci., 11, pp. 314, 322; 1925.
  4. H. C. Burger and H. B. Dorgelo, ZS. f. Phys., 23, p. 258; 1924.
  5. R. Frerichs, Ann. der Phys., S1, p. 807; 1926.
  6. J. B. van Milaan, ZS. f. Phys., 34, p. 921; 1925; 38, p. 427; 1926.
  7. G. R. Harrison, J.O.S.A. & R.S.I., 11, pp. 113, 341; 1925.G. R. Harrison and G. S. Forbes, ibid., 10, p. 1; 1925.
  8. G. R. Harrison, J.O.S.A. & R.S.I., 16, p. 63; 1928.
  9. G. R. Harrison, J.O.S.A. & R.S.I., 11, p. 341; 1925.
  10. C. E. Weinland, J.O.S.A. & R.S.I., 15, p. 337; 1927.
  11. J. B. van Milaan, ZS. f. Phys., 38, p. 427; 1926.
  12. L. S. Ornstein and H. C. Burger, ZS. f. Phys., 46, p. 303; 1926.

Burger, H. C.

H. C. Burger and H. B. Dorgelo, ZS. f. Phys., 23, p. 258; 1924.

L. S. Ornstein and H. C. Burger, ZS. f. Phys., 46, p. 303; 1926.

Dorgelo, H. B.

H. C. Burger and H. B. Dorgelo, ZS. f. Phys., 23, p. 258; 1924.

Frerichs, R.

R. Frerichs, Ann. der Phys., S1, p. 807; 1926.

Harrison, G. R.

G. R. Harrison, J.O.S.A. & R.S.I., 11, pp. 113, 341; 1925.G. R. Harrison and G. S. Forbes, ibid., 10, p. 1; 1925.

G. R. Harrison, J.O.S.A. & R.S.I., 16, p. 63; 1928.

G. R. Harrison, J.O.S.A. & R.S.I., 11, p. 341; 1925.

Kronig, R. de L.

R. de L. Kronig, ZS. f. Phys., 31, p. 885; 33, p. 261; 1925.Sommerfeld and Hönl, Sitz. Preuss. Akad. Wiss., 9, p. 141; 1925.H. N. Russell, Proc. Nat. Acad. Sci., 11, pp. 314, 322; 1925.

Milaan, J. B. van

J. B. van Milaan, ZS. f. Phys., 38, p. 427; 1926.

Ornstein, L. S.

L. S. Ornstein and H. C. Burger, ZS. f. Phys., 46, p. 303; 1926.

For outlines of methods, and bibliography, seeL. S. Ornstein, Proc. Phys. Soc. London, 37, p. 334; 1925.H. B. Dorgelo, Phys. ZS., 26, p. 756; 1925.G. M. B. Dobson, I. O. Griffith and D. N. Harrison: Photographic Photometry, Clarendon Press, 1926.

Russell, H. N.

H. N. Russell, Astrophysical Journal, 66, pp. 283–328, 347–438; 1927.

van Milaan, J. B.

J. B. van Milaan, ZS. f. Phys., 34, p. 921; 1925; 38, p. 427; 1926.

Weinland, C. E.

C. E. Weinland, J.O.S.A. & R.S.I., 15, p. 337; 1927.

Other

H. N. Russell, Astrophysical Journal, 66, pp. 283–328, 347–438; 1927.

For outlines of methods, and bibliography, seeL. S. Ornstein, Proc. Phys. Soc. London, 37, p. 334; 1925.H. B. Dorgelo, Phys. ZS., 26, p. 756; 1925.G. M. B. Dobson, I. O. Griffith and D. N. Harrison: Photographic Photometry, Clarendon Press, 1926.

R. de L. Kronig, ZS. f. Phys., 31, p. 885; 33, p. 261; 1925.Sommerfeld and Hönl, Sitz. Preuss. Akad. Wiss., 9, p. 141; 1925.H. N. Russell, Proc. Nat. Acad. Sci., 11, pp. 314, 322; 1925.

H. C. Burger and H. B. Dorgelo, ZS. f. Phys., 23, p. 258; 1924.

R. Frerichs, Ann. der Phys., S1, p. 807; 1926.

J. B. van Milaan, ZS. f. Phys., 34, p. 921; 1925; 38, p. 427; 1926.

G. R. Harrison, J.O.S.A. & R.S.I., 11, pp. 113, 341; 1925.G. R. Harrison and G. S. Forbes, ibid., 10, p. 1; 1925.

G. R. Harrison, J.O.S.A. & R.S.I., 16, p. 63; 1928.

G. R. Harrison, J.O.S.A. & R.S.I., 11, p. 341; 1925.

C. E. Weinland, J.O.S.A. & R.S.I., 15, p. 337; 1927.

J. B. van Milaan, ZS. f. Phys., 38, p. 427; 1926.

L. S. Ornstein and H. C. Burger, ZS. f. Phys., 46, p. 303; 1926.

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