Image Details
Caption: Figure 6.
The column densities of four groups of Fe I lines are shown as a function of cometocentric distance. The model fits are marked with a red line. The error bars are again quite small, with the largest error bars being that in the outer regions of the Fe 3746 Å line, which is ±0.15
© 2026. The Author(s). Published by the American Astronomical Society.