Abstract
THE bright line spectrum of Nova RR Pictoris (1925) is characterized in the later stages by a group of lines in the visible region, of which the most prominent, 5723 and 6087, form with H+ and 4686 of He II the dominating lines of the spectrum1. These lines have not been found in any other spectrum and no adequate explanation of them has been given so far.
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References
Jones, H. S., Mon. Not. Roy. Astro. Soc., 94, 35, 816 (1933–34).
Bowen, I. S., Phys. Rev., 47, 924 (1935).
Cady, W. M., Phys. Rev., 43, 322 (1933).
Edlén, B., Z. Phys., 100, 621 (1936).
Condon, E. U., and Shortley, G. H., "The Theory of Atomic Spectra" (Cambridge Univ. Press, 1935), p. 202 and 206.
See ref. 1, p. 36.
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BOWEN, I., EDLÉN, B. Forbidden Lines of Fe VII in the Spectrum of Nova RR Pictoris (1925). Nature 143, 374 (1939). https://doi.org/10.1038/143374a0
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DOI: https://doi.org/10.1038/143374a0
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