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Click on the image above for a larger .gif version, or get the .eps file (486 kB, right only).
On the left, one of my favorite cartoons, due to Piddington. This version was scanned from the article by T. Gold in the NASA SP-50 conference proceedings (1961), a rich source of early cartoons. I like it not only because the portrayal of the corona looks interesting, but also for the wonderful equation "jbar = anything" down there in the subphotospheric domain. There is something, well, interesting about the RHS here.The cartoon on the right is a latter-day creation (Piddington, ApJ 233, 727, 1979), included here for clarity.
December 28, 2007