ON THE OBLITERATION OF STRONG FRAUNHOFER LINES BY ELECTRON SCATTERING IN THE SOLAR CORONA

@article{Menzel1968ONTO,
  title={ON THE OBLITERATION OF STRONG FRAUNHOFER LINES BY ELECTRON SCATTERING IN THE SOLAR CORONA},
  author={Donald Howard Menzel and Jay M. Pasachoff},
  journal={Publications of the Astronomical Society of the Pacific},
  year={1968},
  volume={80},
  pages={458}
}
The invisibility of Fraunhofer lines in the inner corona at solar eclipses first indicated the very high temperatures present there. Scattering by fast electrons presumably washes out the lines. In this article we emphasize that the evidence is still unclear whether the strongest photospheric absorption lines appear as wide depressions in the K corona, and we re-examine data pertinent to the discussion. 
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