Abstract
THOSE who are interested in the flare problem will welcome observations of the kind referred to in the preceding letter. At the same time, I cannot agree with Dr. Das and his colleagues in their facile conclusion that the measured line-widths of 8 A. and 6 A. for Hα. and Hβ in emission "are clearly inconsistent, even qualitatively, with the Stark effect hypothesis of line-broadening in flare spectra". After all, these measures merely confirm my own observations, to which both Mr. C. E. R. Bruce and the present writers have referred. For the following reasons it seems improbable that this issue can be decided by line-width measures alone.
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References
Ellison, M. A., Mon. Not. Roy. Astro. Soc., 103, 3 (1943).
Ellison, M. A., and Hoyle, F., The Observatory, 67, 181 (1947).
Ellison, M. A., Mon. Not. Roy. Astro. Soc., 109, 3 (1949).
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ELLISON, M. Line-Broadening in Solar Flares. Nature 164, 965 (1949). https://doi.org/10.1038/164965a0
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DOI: https://doi.org/10.1038/164965a0
