Abstract
DURING a stay at the Tromsø Observatory, I studied systematically the spectrum of different forms of auroras (arcs, draperies, clouds, corona, etc.). One hundred spectrograms were thus obtained in the autumn of 1937. The analysis of these data is now being carried out, but some important facts are already apparent.
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Vegard, L., Geofys. Pub. Oslo, (10), 4, 53 (1933). Bernard, R., C.R., 204, 993 (1937).
Kaplan, J., NATURE, 141, 645 (1938).
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BERNARD, R. Possible Presence of Metastable Atoms of Nitrogen (2P) in the High Atmosphere. Nature 141, 1140 (1938). https://doi.org/10.1038/1411140a0
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DOI: https://doi.org/10.1038/1411140a0
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