Fig. 12
Feasibility of using the iron Kα line for the redshift determination at z = 0. See Sect. 6 for details. Top: fraction of catastrophic failures. Middle: accuracy of the redshift determination. The black dashed line corresponds to the energy resolution of eROSITA. Bottom: number of sources for which the redshift can be determined with the accuracy shown in the middle panel, the catastrophic failures excluded (black points show only the log N − log S).
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