Abstract

The strengths and half-widths of lines in the <i>R</i> branch of the CO fundamental band at temperatures as low as 113 K have been determined from equivalent-width measurements in the linear and square-root regions of the curve of growth. For all temperatures, the observed line strengths are in excellent agreement with line strengths calculated on the basis of the Herman-Wallis expression. However, at the lowest temperatures the observed half-widths differ considerably from the values calculated on the basis of the usual extrapolations of room-temperature data; the half-widths of lines near the band center are much larger than the calculated half-widths, and the half-widths of lines in the band wing are apparently considerably smaller than the calculated half-widths.

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  1. J. N. Howard, D. E. Burch, and D. Williams, J. Opt. Soc. Am. 46, 186, 237, 242, 334, 452 (1956).
  2. D. Burch and D. Williams, Appl. Opt. 1, 473 (1962).
  3. D. Burch and D. Williams, Appl. Opt. 1, 587 (1962).
  4. W. L. France and D. Williams, J. Opt. Soc. Am. 56, 70 (1966).
  5. D. Vanderwerf and J. H. Shaw, Appl. Opt. 4, 209 (1965); C. E. Hathway, G. M. Hoover, and D. Williams, J. Opt. Soc. Am. 58, 739A (1968).
  6. W. S. Benedict, R. Herman, G. E. Moore, and S. Silverman, Can. J. Phys. 34, 855 (1956).
  7. H. Goldring and W. Benesch, Can. J. Phys. 40, 1801 (1962).
  8. C. Crane-Robinson and H. W. Thompson, Proc. Roy. Soc. (London) A272, 441 (1963).
  9. W. S. Benedict, R. Herman, G. E. Moore, and S. Silverman, Astrophys. J. 135, 277 (1962).
  10. E. K. Plyler and R. J. Thibault, J. Res. Natl. Bur. Std. (U. S.) 67A, No. 3, 229 (1963).
  11. H. J. Kostkowski and A. M. Bass, J. Quant. Spectry. Radiative Transfer 1, 117 (1961).
  12. C. Crane-Robinson and H. W. Thompson, Proc. Roy. Soc. (London) A272, 441, 453 (1963).
  13. D. E. Burch and D. A. Gryvnak, J. Chem. Phys. 47, 4930 (1967).
  14. W. S. Benedict and S. Silverman, Phys. Rev. 94, 752 (A) (1954).
  15. R. P. Madden, J. Chem. Phys. 35, 2083 (1961).
  16. D. E. Burch, D. A. Gryvnak, and R. R. Patty, J. Opt. Soc. Am. 58, 335 (1968).
  17. H. J. Kostkowski, J. Opt. Soc. Am. 45, 406 (1955).
  18. W. S. Benedict, H. H. Claassen, and J. H. Shaw, J. Res. Natl. Bur. Std. (U. S.) 49, 91 (1952).
  19. F. Saiedy, Quart. J. Roy. Meteorol. Soc. 87, 578 (1961).
  20. R. B. Sanderson and N. Ginsburg, J. Quant. Spectry. Radiative Transfer 3, 435 (1963).
  21. J. Rud Nielsen, V. Thornton, and E. B. Dale, Rev. Mod. Phys. 16, 307 (1944).
  22. H. J. Babrov, J. Opt. Soc. Am. 51, 171 (1961).
  23. R. Ladenberg and R. Reiche, Ann. Physik 42, 181 (1913).
  24. L. D. Kaplan and D. F. Eggers, J. Chem. Phys. 25, 876 (1956).
  25. R. Herman and R. Wallis, J. Chem. Phys. 23, 637 (1955).
  26. E. K. Plyler, private communication, 1968.
  27. J. A. Dowling, S. Silverman, W. S. Benedict, and J. W. Quinn, J. Opt. Soc. Am. 58, 739A (1968).

Babrov, H. J.

H. J. Babrov, J. Opt. Soc. Am. 51, 171 (1961).

Bass, A. M.

H. J. Kostkowski and A. M. Bass, J. Quant. Spectry. Radiative Transfer 1, 117 (1961).

Benedict, W. S.

W. S. Benedict and S. Silverman, Phys. Rev. 94, 752 (A) (1954).

W. S. Benedict, R. Herman, G. E. Moore, and S. Silverman, Astrophys. J. 135, 277 (1962).

W. S. Benedict, R. Herman, G. E. Moore, and S. Silverman, Can. J. Phys. 34, 855 (1956).

W. S. Benedict, H. H. Claassen, and J. H. Shaw, J. Res. Natl. Bur. Std. (U. S.) 49, 91 (1952).

J. A. Dowling, S. Silverman, W. S. Benedict, and J. W. Quinn, J. Opt. Soc. Am. 58, 739A (1968).

Benesch, W.

H. Goldring and W. Benesch, Can. J. Phys. 40, 1801 (1962).

Burch, D.

D. Burch and D. Williams, Appl. Opt. 1, 473 (1962).

D. Burch and D. Williams, Appl. Opt. 1, 587 (1962).

Burch, D. E.

J. N. Howard, D. E. Burch, and D. Williams, J. Opt. Soc. Am. 46, 186, 237, 242, 334, 452 (1956).

D. E. Burch and D. A. Gryvnak, J. Chem. Phys. 47, 4930 (1967).

D. E. Burch, D. A. Gryvnak, and R. R. Patty, J. Opt. Soc. Am. 58, 335 (1968).

Claassen, H. H.

W. S. Benedict, H. H. Claassen, and J. H. Shaw, J. Res. Natl. Bur. Std. (U. S.) 49, 91 (1952).

Crane-Robinson, C.

C. Crane-Robinson and H. W. Thompson, Proc. Roy. Soc. (London) A272, 441, 453 (1963).

C. Crane-Robinson and H. W. Thompson, Proc. Roy. Soc. (London) A272, 441 (1963).

Dale, E. B.

J. Rud Nielsen, V. Thornton, and E. B. Dale, Rev. Mod. Phys. 16, 307 (1944).

Dowling, J. A.

J. A. Dowling, S. Silverman, W. S. Benedict, and J. W. Quinn, J. Opt. Soc. Am. 58, 739A (1968).

Eggers, D. F.

L. D. Kaplan and D. F. Eggers, J. Chem. Phys. 25, 876 (1956).

France, W. L.

W. L. France and D. Williams, J. Opt. Soc. Am. 56, 70 (1966).

Ginsburg, N.

R. B. Sanderson and N. Ginsburg, J. Quant. Spectry. Radiative Transfer 3, 435 (1963).

Goldring, H.

H. Goldring and W. Benesch, Can. J. Phys. 40, 1801 (1962).

Gryvnak, D. A.

D. E. Burch and D. A. Gryvnak, J. Chem. Phys. 47, 4930 (1967).

D. E. Burch, D. A. Gryvnak, and R. R. Patty, J. Opt. Soc. Am. 58, 335 (1968).

Herman, R.

R. Herman and R. Wallis, J. Chem. Phys. 23, 637 (1955).

W. S. Benedict, R. Herman, G. E. Moore, and S. Silverman, Astrophys. J. 135, 277 (1962).

W. S. Benedict, R. Herman, G. E. Moore, and S. Silverman, Can. J. Phys. 34, 855 (1956).

Howard, J. N.

J. N. Howard, D. E. Burch, and D. Williams, J. Opt. Soc. Am. 46, 186, 237, 242, 334, 452 (1956).

Kaplan, L. D.

L. D. Kaplan and D. F. Eggers, J. Chem. Phys. 25, 876 (1956).

Kostkowski, H. J.

H. J. Kostkowski, J. Opt. Soc. Am. 45, 406 (1955).

H. J. Kostkowski and A. M. Bass, J. Quant. Spectry. Radiative Transfer 1, 117 (1961).

Ladenberg, R.

R. Ladenberg and R. Reiche, Ann. Physik 42, 181 (1913).

Madden, R. P.

R. P. Madden, J. Chem. Phys. 35, 2083 (1961).

Moore, G. E.

W. S. Benedict, R. Herman, G. E. Moore, and S. Silverman, Astrophys. J. 135, 277 (1962).

W. S. Benedict, R. Herman, G. E. Moore, and S. Silverman, Can. J. Phys. 34, 855 (1956).

Nielsen, J. Rud

J. Rud Nielsen, V. Thornton, and E. B. Dale, Rev. Mod. Phys. 16, 307 (1944).

Patty, R. R.

D. E. Burch, D. A. Gryvnak, and R. R. Patty, J. Opt. Soc. Am. 58, 335 (1968).

Plyler, E. K.

E. K. Plyler, private communication, 1968.

E. K. Plyler and R. J. Thibault, J. Res. Natl. Bur. Std. (U. S.) 67A, No. 3, 229 (1963).

Quinn, J. W.

J. A. Dowling, S. Silverman, W. S. Benedict, and J. W. Quinn, J. Opt. Soc. Am. 58, 739A (1968).

Reiche, R.

R. Ladenberg and R. Reiche, Ann. Physik 42, 181 (1913).

Saiedy, F.

F. Saiedy, Quart. J. Roy. Meteorol. Soc. 87, 578 (1961).

Sanderson, R. B.

R. B. Sanderson and N. Ginsburg, J. Quant. Spectry. Radiative Transfer 3, 435 (1963).

Shaw, J. H.

W. S. Benedict, H. H. Claassen, and J. H. Shaw, J. Res. Natl. Bur. Std. (U. S.) 49, 91 (1952).

D. Vanderwerf and J. H. Shaw, Appl. Opt. 4, 209 (1965); C. E. Hathway, G. M. Hoover, and D. Williams, J. Opt. Soc. Am. 58, 739A (1968).

Silverman, S.

W. S. Benedict, R. Herman, G. E. Moore, and S. Silverman, Can. J. Phys. 34, 855 (1956).

W. S. Benedict, R. Herman, G. E. Moore, and S. Silverman, Astrophys. J. 135, 277 (1962).

W. S. Benedict and S. Silverman, Phys. Rev. 94, 752 (A) (1954).

J. A. Dowling, S. Silverman, W. S. Benedict, and J. W. Quinn, J. Opt. Soc. Am. 58, 739A (1968).

Thibault, R. J.

E. K. Plyler and R. J. Thibault, J. Res. Natl. Bur. Std. (U. S.) 67A, No. 3, 229 (1963).

Thompson, H. W.

C. Crane-Robinson and H. W. Thompson, Proc. Roy. Soc. (London) A272, 441 (1963).

C. Crane-Robinson and H. W. Thompson, Proc. Roy. Soc. (London) A272, 441, 453 (1963).

Thornton, V.

J. Rud Nielsen, V. Thornton, and E. B. Dale, Rev. Mod. Phys. 16, 307 (1944).

Vanderwerf, D.

D. Vanderwerf and J. H. Shaw, Appl. Opt. 4, 209 (1965); C. E. Hathway, G. M. Hoover, and D. Williams, J. Opt. Soc. Am. 58, 739A (1968).

Wallis, R.

R. Herman and R. Wallis, J. Chem. Phys. 23, 637 (1955).

Williams, D.

W. L. France and D. Williams, J. Opt. Soc. Am. 56, 70 (1966).

D. Burch and D. Williams, Appl. Opt. 1, 587 (1962).

J. N. Howard, D. E. Burch, and D. Williams, J. Opt. Soc. Am. 46, 186, 237, 242, 334, 452 (1956).

D. Burch and D. Williams, Appl. Opt. 1, 473 (1962).

Other (27)

J. N. Howard, D. E. Burch, and D. Williams, J. Opt. Soc. Am. 46, 186, 237, 242, 334, 452 (1956).

D. Burch and D. Williams, Appl. Opt. 1, 473 (1962).

D. Burch and D. Williams, Appl. Opt. 1, 587 (1962).

W. L. France and D. Williams, J. Opt. Soc. Am. 56, 70 (1966).

D. Vanderwerf and J. H. Shaw, Appl. Opt. 4, 209 (1965); C. E. Hathway, G. M. Hoover, and D. Williams, J. Opt. Soc. Am. 58, 739A (1968).

W. S. Benedict, R. Herman, G. E. Moore, and S. Silverman, Can. J. Phys. 34, 855 (1956).

H. Goldring and W. Benesch, Can. J. Phys. 40, 1801 (1962).

C. Crane-Robinson and H. W. Thompson, Proc. Roy. Soc. (London) A272, 441 (1963).

W. S. Benedict, R. Herman, G. E. Moore, and S. Silverman, Astrophys. J. 135, 277 (1962).

E. K. Plyler and R. J. Thibault, J. Res. Natl. Bur. Std. (U. S.) 67A, No. 3, 229 (1963).

H. J. Kostkowski and A. M. Bass, J. Quant. Spectry. Radiative Transfer 1, 117 (1961).

C. Crane-Robinson and H. W. Thompson, Proc. Roy. Soc. (London) A272, 441, 453 (1963).

D. E. Burch and D. A. Gryvnak, J. Chem. Phys. 47, 4930 (1967).

W. S. Benedict and S. Silverman, Phys. Rev. 94, 752 (A) (1954).

R. P. Madden, J. Chem. Phys. 35, 2083 (1961).

D. E. Burch, D. A. Gryvnak, and R. R. Patty, J. Opt. Soc. Am. 58, 335 (1968).

H. J. Kostkowski, J. Opt. Soc. Am. 45, 406 (1955).

W. S. Benedict, H. H. Claassen, and J. H. Shaw, J. Res. Natl. Bur. Std. (U. S.) 49, 91 (1952).

F. Saiedy, Quart. J. Roy. Meteorol. Soc. 87, 578 (1961).

R. B. Sanderson and N. Ginsburg, J. Quant. Spectry. Radiative Transfer 3, 435 (1963).

J. Rud Nielsen, V. Thornton, and E. B. Dale, Rev. Mod. Phys. 16, 307 (1944).

H. J. Babrov, J. Opt. Soc. Am. 51, 171 (1961).

R. Ladenberg and R. Reiche, Ann. Physik 42, 181 (1913).

L. D. Kaplan and D. F. Eggers, J. Chem. Phys. 25, 876 (1956).

R. Herman and R. Wallis, J. Chem. Phys. 23, 637 (1955).

E. K. Plyler, private communication, 1968.

J. A. Dowling, S. Silverman, W. S. Benedict, and J. W. Quinn, J. Opt. Soc. Am. 58, 739A (1968).

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