Letter | Published:

Vibration Temperature in relation to Rotation Temperature in Band Spectra

Nature volume 140, pages 463464 (11 September 1937) | Download Citation



THE problem of exciting band spectra of two different molecules in the same source has attracted some attention of late. Investigation of excitation temperatures of molecules under these conditions has given interesting results which require elucidation from theory. For example, Lochte-Holtgreven1 found by examining CH and C2 bands in the same discharge tube a temperature difference of more than 1,000° between the two. On the other hand, van Wijk2 arrived at a common effective temperature from the negative (N+2) and second positive (N2) bands of nitrogen in the same discharge tube. In view of these results, it was deemed necessary to undertake further work on the same lines.

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  1. 1.

    Z. Phys., 64, 443 (1930); 67, 590 (1931).

  2. 2.

    Z. Phys., 59, 313 (1930).

  3. 3.

    Proc. K. Acad. Amsterdam, 34, 498 (1931).

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  1. Physics Laboratory, Royal Institute of Science, Bombay. August 5.

    • N. R. TAWDE
    •  & S. A. TRIVEDI


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