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Table 2.
Gaia DR2 field stars that pass our selection criteria in 4 different regions around each cluster.
| Center | Number of field | Total number of stars | Scaled number | Significance (#) |
|---|---|---|---|---|
| (RA, Dec) | stars | in the region | of field stars (!) | |
| NGC 6397 | 120 | 1 789 728 | ||
| 265, −35 | 15 | 2 497 841 | 11 | 32.9 |
| 265, −70 | 34 | 617 114 | 99 | 14.7 |
| 270, −54 | 82 | 610 438 | 241 | High contamination |
| 250, −54 | 16 | 3 789 764 | 8 | 39.6 |
| NGC 2808 | 126 | 101 782 | ||
| 138, −60 | 99 | 183 933 | 58 | 8.9 |
| 138, −70 | 75 | 67 880 | 113 | 1.2 |
| 143, −65 | 77 | 202 611 | 39 | 13.9 |
| 133, −65 | 106 | 62 596 | 173 | High contamination |
| NGC 6266 | 107 | 159 567 | ||
| 255, −25 | 93 | 103 460 | 143 | High contamination |
| 255, −35 | 51 | 125 075 | 65 | 5.2 |
| 250, −30 | 72 | 75 295 | 152 | High contamination |
| 260, −30 | 77 | 144 520 | 85 | 2.4 |
Notes. (!)Scaled number of field stars (Nfield) = 
; 
, where Nextra − tidal is number of extratidal stars around the cluster.
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