Coronal Loops: Observations and Modeling of Confined Plasma
Reale, Fabio, Coronal Loops: Observations and Modeling of Confined Plasma, Living Reviews in Solar Physics, 11, 4 (2014) (ADS)
(click on the image for a larger version)
The perils of imaging spectroscopy well illustrated, at least as applied
to the interpretation of models.
Here a beautiful mult-stranded loop system imaged by TRACE in 1999 has
an overlay suggesting how to integrate the image for comparison with 1D
radiation hydrodynamics models.
pretty clearly the integration box does not match any of the observed
loops, and this points to substantial systematic error especially when
integrating multiple wave bands.
This does not mean that a 1D model may not work well; it certainly may
for many interesting purposes.
But not generally; see Hori's original
step away from this viewpoint.
The perils of imaging spectroscopy well illustrated, at least as applied to the interpretation of models. Here a beautiful mult-stranded loop system imaged by TRACE in 1999 has an overlay suggesting how to integrate the image for comparison with 1D radiation hydrodynamics models. pretty clearly the integration box does not match any of the observed loops, and this points to substantial systematic error especially when integrating multiple wave bands. This does not mean that a 1D model may not work well; it certainly may for many interesting purposes. But not generally; see Hori's original step away from this viewpoint.