Fig. 3.

Flux density spectra of the six selected Fe XXV-emitting sources, obtained from the Chandra ACIS-S. Data were re-binned for display purpose. The flux density data are in units of 10−14 erg cm−2 s−1 keV−1. The estimated local diffuse background for each source is indicated by the dotted grey line. Fe XXV lines at 6.7 keV are clearly detected in all the sources. The spectrum of Xp17 contains some contribution of the nearby bright source Xp16 spilling over into the Xp17 aperture.
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