Physics
Scientific paper
May 1921
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1921natur.107..392r&link_type=abstract
Nature, Volume 107, Issue 2691, pp. 392 (1921).
Physics
Scientific paper
IN pursuance of the programme outlined in my letter to NATURE of March 31, p. 137, I have been photographing the spectrum of the night sky every night. On the night of May 13-14, and also of May 14-15, a strong auroral spectrum was obtained, showing the aurora line λ5578, and also the negative bands of nitrogen, which were much stronger than the aurora line. Ten heads of these bands were shown on the photograph of May 14-15, though only six appear within the same spectral range in Vegard's investigation made on a special expedition to the Arctic.
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