As a consequence of such early studies, it was established that the light arising from the K-corona was radially polarized .
In this regard, the LMHSM provides a strong platform to account for the polarization of the K-corona, enabling polarized self-emission from an anisotropic structure.
It is easy extend this example to the k-corona model.
We regard the ECT scheme with k-corona model as ECT-k.
Measuring the polarization enables us to separate the "Fraunhofer corona" of dust, which shows the spectrum of the solar photosphere, from the normal electron "K-corona
" visible during eclipses.
The white light emitted by the K-corona is readily visualized during solar eclipses.
As for the Fraunhofer lines, they do not appear on the spectrum of the K-corona owing to insufficient concentrations of absorbing species exist in this region of the Sun.
In this work, Harkness' conclusion will be re-evaluated, with the intent of demonstrating that the K-corona is indeed self-luminous, as first postulated in 1869 [3, p.
It was the spectrum of the inner corona, or K-corona, which was measured long ago by Harkness, Young, and Evershed [2-4] and which has been the subject of several classic reports [5-10].
Superimposed on the continuous spectrum of the inner K-corona are emission lines, including one at 5303.3 A, the famous line from coronium, first discovered by Harkness and Young [2,3], photographed by Evershed , and eventually identified as FeXIV by Bengt Edlen [5-7].
Consequently, sufficient electron densities are inferred to exist in the corona to support the idea that the spectrum of the K-corona is being produced by the scattering of photospheric light: "The reason we see the corona in white, or integrated, light is that the photospheric light is scattered by coronal electrons: we see the light that does not get through but is scattered towards us.
Furthermore, by accepting elevated coronal temperatures, proponents of the gaseous models must discount the continuous emission of the K-corona
as illusionary and produced by the photosphere (see  for a completed discussion).