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Table 4:

Number and percentage of variable X-ray counterparts.
Q. flag Sp. Type Within one exposure Between exposures  
    total single binaries total single binaries not tested
0 O 0 0 0 4 (25%) 3 (25%) 1 (25%) 19 (54%)
0 B 4 (4%) 4 (5%) 0 7 (32%) 7 (33%) 0 69 (76%)
0 WR 0 0 0 2 (50%) 1 (50%) 1(50%) 3 (43%)
$\neq$0 O 4 (4%) 3 (4%) 1 (5%) 44 (69%) 32 (67%) 12 (75%) 34 (35%)
$\neq$0 B 4 (6%) 4 (6%) 0 14 (67%) 12 (63%) 2 (100%) 70 (49%)
$\neq$0 WR 0 0 0 6 (86%) 0 6 (100%) 2 (22%)

When comparing several exposures, the percentages noted for non-tested objects were calculated with respect to the entire sample, whereas those of the variable sources refer only to the tested subsample.


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