Physics
Scientific paper
Jul 1930
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1930phrv...36...13h&link_type=abstract
Physical Review, vol. 36, Issue 1, pp. 13-15
Physics
1
Scientific paper
Spectra of condensed discharges through hydrogen at pressures up to several cm of mercury showed, as usual, the Balmer lines merging into the continuous spectrum. With increasing strength of the discharge the Balmer lines widened, the higher members of the series disappeared and the continuous spectrum became more intense, until with 1 microfarad at 15 kilovolts there were no Balmer lines left at all, only the continuous spectrum and some absorption lines due to aluminum from the electrodes, etc. Helium, oxygen and nitrogen exhibited similar changes, i.e., with increasing intensity of the discharge in helium the lines gave way to a continuous spectrum, and in oxygen and nitrogen the molecular bands gave way to spark lines and these in turn to a continuous spectrum. The continuous spectra from all the gases were alike. The intensity distribution across the continuous spectrum was rather even and hardly that of a black body. In the strong discharges the external characteristics of the atoms were pretty well effaced and the conditions perhaps approached those in the interior of a star.
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