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Table 1
The number distribution of clusters within different heliocentric distance intervals.
| Cluster population | Number of clusters | ||||
| < 0.5 kpc | 0.5−1.0 kpc | 1.0−1.5 kpc | 1.5−1.8 kpc | up to 1.8 kpc | |
|
|
|||||
| YOCs | 18 (22.9) | 26 (11.0) | 58 (14.8) | 37 (11.9) | 139 (13.7) |
| IOCs | 67 (85.3) | 189 (80.2) | 298 (75.9) | 196 (63.0) | 750 (73.7) |
| OOCs | 6 ( 7.6) | 68 (28.9) | 169 (43.0) | 109 (35.0) | 352 (34.6) |
| All | 91 (115.9) | 283 (120.1) | 525 (133.7) | 342 (109.9) | 1241 (121.9) |
Notes. In the bracket, we give the surface density of cluster populations Σxy (kpc-2) within the given distance scale.
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