Natural SciencesGeophysicsPhysicsGeomagnetismPlasma PhysicsSpectroscopyGeomagnetic ObservatoriesSolar Energetic ParticlesAuroral PhysicsMagnetospheric AurorasProminence Observations
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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Aurora spectra showing broad hydrogen lines
C. W. Gartlein · Transactions American Geophysical Union · 1950 · 48 citations
Natural Sciences, Astronomy, Physics +13