De Jager, C., The Sun as a Source of Interplanetary Gas, Space Sci. Rev., 1, 487-521 (1963) (ADS)
(click on the image for a larger version)
This was one of a set of three sketches, showing the 1962 level of
understanding of how to interpret the solar flare microwave sources.
Here the type III electron streams are seen going down, to produce
hard X-rays - this may have been originally suggested by De Jager, the
Archivist thinks, and perhaps shown for the first time in this cartoon.
But see also the De Jager-Kundu entry,
It was based on the skimpiest possible observational material,
prior even to the
OSO-1 satellite!
The idea of skinny magnetic flux tubes guiding the electrons in the low corona
perhaps had not quite sunk in.
These were the early days of plasma astrophysics; note the title of the
paper (nowadays we don't think of "interplanetary gas" so much).
Note also that there is no magnetic field shown to collimate the escaping
electrons
This was about the time of the actual first detections of the interplanetary
magnetic field.
A later De Jager later cartoon
dug more deeply into what happens as the electrons stream into the chromosphere,
in the popular thick-target picture.
This was one of a set of three sketches, showing the 1962 level of understanding of how to interpret the solar flare microwave sources. Here the type III electron streams are seen going down, to produce hard X-rays - this may have been originally suggested by De Jager, the Archivist thinks, and perhaps shown for the first time in this cartoon. But see also the De Jager-Kundu entry, It was based on the skimpiest possible observational material, prior even to the OSO-1 satellite! The idea of skinny magnetic flux tubes guiding the electrons in the low corona perhaps had not quite sunk in. These were the early days of plasma astrophysics; note the title of the paper (nowadays we don't think of "interplanetary gas" so much). Note also that there is no magnetic field shown to collimate the escaping electrons This was about the time of the actual first detections of the interplanetary magnetic field. A later De Jager later cartoon dug more deeply into what happens as the electrons stream into the chromosphere, in the popular thick-target picture.