Fig. 6
EXT_STAT using tiles vs. EXT_STAT using single pointings. The lines at EXT_STAT = 33 show the C1 selection criterion, the dashed lines at EXT_STAT = 15 the C2 selection criterion. Also, shown are the line of equality, where on-axis sources fall, and the line EXT_STATTiles = 2 ×EXT_STATPointings, where most sources off-axis fall, showing the EXT_STATTiles ≈ 2 EXT_STATPointings.
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