Abstract
ON September 30, 1950, spectrograms were taken simultaneously from Arnprior, Ontario, and Ithaca, New York, separated by 330 km., of an auroral arc located over Arnprior. The Arnprior spectrograph was aimed nearly along the lines of magnetic force, while the Ithaca spectrograph was aimed northward at right angles to the field. Both were aimed at the same part of the arc.
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References
Gartlein, C. W., Document T124 Int. Assoc. Terr. Mag. and Elect. U.G.G.I., Oslo Assembly, 1948; Phys. Rev., 74, 1208, Abs. (1948); Trans. Amer. Geophys. Union, 31, 18 (1950).
Meinel, A. B., private communication, and Science (Nov. 1950).
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GARTLEIN, C. Protons and the Aurora. Nature 167, 277 (1951). https://doi.org/10.1038/167277a0
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DOI: https://doi.org/10.1038/167277a0
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