Table 1
Summary statistics of structural characteristics of regions.
| Min | Q1 | Q2 | Mean | Q3 | Max | |
|---|---|---|---|---|---|---|
| d (pc) | 235.0 | 436.2 | 830.0 | 1058.2 | 1460.0 | 3600.0 |
| R (pc) | 0.611 | 1.941 | 3.157 | 4.162 | 4.878 | 21.086 |
| N | 63.0 | 221.8 | 283.5 | 573.1 | 940.8 | 2790.0 |
| Nmerged | 63.0 | 219.5 | 282.5 | 558.0 | 908.0 | 2708.0 |
| Q | 0.431 | 0.710 | 0.835 | 0.804 | 0.892 | 1.008 |
| NNEST | 0.00 | 2.25 | 4.50 | 6.68 | 8.75 | 23.00 |
| Nmin | 4.0 | 4.0 | 5.0 | 4.5 | 5.0 | 5.0 |
| ε (kAU) | 3.447 | 8.199 | 13.089 | 14.855 | 18.919 | 39.341 |
| ρrel | 10.55 | 15.32 | 16.65 | 17.77 | 18.45 | 37.74 |
| fNEST | 0.000 | 0.075 | 0.108 | 0.107 | 0.139 | 0.304 |
| NMX | 0.000 | 1.562 | 2.800 | 4.457 | 5.188 | 26.750 |
Notes. d is the distance in parsecs, R is the radius in parsecs, N is the number of members of each region, Nmerged is the number of members after merging objects within 2″ , Q is the structural parameter introduced by Cartwright & Whitworth 2004, NNEST is the number of retrieved NESTs, and ε and Nmin are the scale and number parameters for DBSCAN determined by S2D2. ρrel is the relative density parameter, fNEST is the fraction of stars in NESTs within a region, and NMX is the ratio of the maximum number of members of a NEST and Nmin.
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