Does Iron occur in the Solar Corona?

Details Does Iron occur in the Solar Corona? Does Iron occur in the Solar Corona?

Jan 1938

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1938natur.141...81r&link_type=abstract

Nature, Volume 141, Issue 3558, pp. 81 (1938).

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Scientific paper

STRATTON1 was able to recognize two `forbidden' N II-lines in the beautiful photographs of the corona spectrum obtained by Sekiguti1 at the total solar eclipse of June 19, 1936, and so to prove the occurrence of nitrogen in the solar corona. Moreover, Sekiguti noticed that two of the corona lines, λ 4815.9 and λ 5738.0, on his photographs came very close to the nebular lines λ 4814.78 and λ 5737 in the spectrum of η-Carinæ. One of these two lines (λ 4814.78) is amongst those which Merrill2 recognized as `forbidden' Fe II-lines. Should this identification be the correct one, this would mean that in addition to nitrogen another element, namely, iron, exists in the solar corona. In view of the interest generally taken in the chemical composition of the solar corona, we wish to discuss in some detail the possibility of such an identification.

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