Modelling of proton acceleration in application to a ground level enhancement
Afanasiev, A., R. Vainio, A. P. Rouillard, M. Battarbee, A. Aran, and P. Zucca, Modelling of proton acceleration in application to a ground level enhancement, A&A, 614, A4 (2018) (ADS)
(click on the image for a larger version)
A nice simple cartoon describing the shape and size of a magnetic flux
tube anchored in the Sun.
This geometry appears elsewhere
in more detail but less color.
Here the main source of irritation is the exaggeration; a flux tube of this
sort should expand faster than 1/r in cross-section, and yet this one does
the opposite.
To what extent is our intuition clouded by the apparent tendentiousness?
Probably not much, at least in this excellent paper.
Similar bad examples occur, for example, in terms of
Larmor radii
and in many other places across the Archive.
A nice simple cartoon describing the shape and size of a magnetic flux tube anchored in the Sun. This geometry appears elsewhere in more detail but less color. Here the main source of irritation is the exaggeration; a flux tube of this sort should expand faster than 1/r in cross-section, and yet this one does the opposite. To what extent is our intuition clouded by the apparent tendentiousness? Probably not much, at least in this excellent paper. Similar bad examples occur, for example, in terms of Larmor radii and in many other places across the Archive.