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Fig. 4.

image

Simulated eROSITA all-sky four-year exposure map in equatorial coordinates used in this work, with the location of the three relevant simulated fields: equatorial (∼2 ks exposure time, uniform), intermediate (∼4 ks, slight gradient), and deep (∼10 ks, larger gradient). The colour bar (logarithmic scale) is in units of seconds.

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