Intensities of Hydrogen H and Helium D3 Solar Prominences. Paper II
Open Access
- 1 February 1945
- journal article
- research article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 105 (1) , 17-22
- https://doi.org/10.1093/mnras/105.1.17
Abstract
In continuance of former work, values of intensity are given of the lines hydrogen Hα and helium D 3 for various regions of 21 prominences. Results appear to confirm previous observations in the sense that variations in the relative intensity of Hα and D 3 can be explained as curve of growth effects. In particular cases variations of excitation appear as systematic deviations from the theoretical curve of growth. The observations are in agreement with a curve of growth for a temperature of 5000° as temperature of the solar boundary.Keywords
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