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Fig. 4

image

Upper panel: emission measure distribution of ι Hor calculated using the summed RGS spectrum. The thin lines represent the relative contribution function for each ion (the emissivity function multiplied by the EMD at each point). The small numbers indicate the ionization stages of the species. Lower panel: shown are the observed-to-predicted line flux ratios for the ion stages in the upper figure. The dotted lines denote a factor of 2.

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