Abstract
Transitions from the lowest metastable levels in the OI spectrum are of interest as occurring in nebular and auroral spectra. The red lines (λλ6300, 6364), which have been produced in the laboratory by Hopfield,1 have been identified by Paschen2 as occurring in the spectra of some of the nebulæ, and by Sommer3 as occurring in the spectrum of the night sky, while the line (λ5577) is the well-known auroral green line first identified by McLennan. A theoretical calculation of the intensities of such transitions and the mean lives of the metastable states is therefore of interest.
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References
Hopfield, Phys. Rev., 37, 100 1931.
Paschen, Naturwiss., 18, 752 1930.
Sommer, ibid. Cf. Grotrian, Naturwiss., 20, 85 1932.
Frerichs and Campbell, Phys. Rev., 36, 1460 1931.
Cf. also Bartlett, Phys. Rev., 34, 1247 1929.
Heisenberg, Ann. Phys., 10, 888 1931.
Paschen, Z. Physik, 65, 1 1930.
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STEVENSON, A. Mean Lives of the Lowest Metastable States in Neutral Oxygen, and Intensities of Lines Arising therefrom. Nature 130, 131 (1932). https://doi.org/10.1038/130131a0
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DOI: https://doi.org/10.1038/130131a0
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