4 Result(s)
within
René Bernard
Science, Humanities and Social Sciences, multidisciplinary
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Article
Enhancement of the Sodium D Lines in the Twilight Sky Light
Prof. J. Cabannes, Prof. J. Dufay and J. Gauzit1 state that the twilight enhancement of the yellow radiation of the night sky announced by me2 was previously observed by Currie and Edwards at Chesterfield (Canada...
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Article
Possible Presence of Metastable Atoms of Nitrogen (2P) in the High Atmosphere
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 o...
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Article
Sodium in the High Atmosphere
IN the spectrum of the sky at twilight, a yellow radiation was found very near the mean wave-length of the sodium D lines (λ = 5893 A.). This radiation is relatively strong, but its intensity decreases abruptly i...
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Article
Spectrum of Nitrogen and Atmospheric Pressure at High Altitudes
IN a series of experiments on the excitation of nitrogen bands by a controlled electronic bombardment, I have observed, as Dr. Kaplan did1, the great modifications of the spectrum which accompany any change in th...
