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A New Emission Spectrum in Selenium Vapour

Naturevolume 135pages913914 (1935) | Download Citation



IN the course of a systematic study of the excitation of selenium vapour in a high-frequency discharge, we have observed, on the short wave side of the main 11 system1, a new system of about forty weak and diffuse bands degraded to the red which may be approximately represented by the following formula: These bands appear at low temperatures, before the main system becomes visible; but when the temperature is raised, the main system becomes incomparably more intensified than the new one.

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  1. 1

    B. Rosen, Z. Phys., 43, 100; 1927.

  2. 2

    E. Olsson, Z. Phys., 90, 138; 1934.

  3. 3

    M. Moraczewska, Z. Phys., 62, 275; 1930.

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  1. Department of Astrophysics, University, Liège

    • B. ROSEN
    •  & M. DÉSIRANT


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