Abstract
HAVING obtained the vacuum spark spectrum of iron, Dr. I. S. Bowen and Dr. B. Edlen have determined the wave-lengths of the forbidden transitions between the terms of the 3d levels, and find that these lines correspond to the lines of hitherto unknown origin in the spectrum of Nova RR Pictoris (1925).
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Points from Foregoing Letters. Nature 143, 381 (1939). https://doi.org/10.1038/143381b0
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DOI: https://doi.org/10.1038/143381b0