Table 2
Properties of detected Bullet cluster substructures.
| ID | Ng | p | x (kpc) | y (kpc) | R/r200 | υg (kms−1) | σg (km s−1) |
|---|---|---|---|---|---|---|---|
| 1 | 6 | 0.000 | −239 | 383 | 0.21 | −1070 ± 694 |  |
| 2 | 7 | 0.000 | 443 | −820 | 0.44 | 383 ± 106 |  |
| 3 | 7 | 0.000 | 837 | 294 | 0.42 | 1113 ± 547 |  |
| 4 | 9 | 0.000 | −2 | 110 | 0.05 | 12 ± 264 |  |
| 5 | 6 | 0.001 | −656 | −589 | 0.41 | 208 ± 521 |  |
| 6 (Bullet) | 9 | 0.001 | −736 | 223 | 0.36 | 413 ± 124 |  |
| 7 | 6 | 0.002 | 47 | −424 | 0.20 | −1020 ± 135 |  |
| 8 | 7 | 0.003 | 82 | −105 | 0.06 | 1105 ± 614 |  |
| 9 | 11 | 0.008 | −1431 | 767 | 0.76 | −505 ± 204 |  |
| 10 | 9 | 0.010 | 173 | 264 | 0.15 | −163 ± 255 |  |
Notes. Ng is the number of galaxies assigned to the substructure by the DS+ algorithm. x, y are the positions in kpc from the cluster center, as in Fig. 5. R is the distance in kiloparsec from the cluster center. υg and σg are the mean velocity and velocity dispersion, respectively, evaluated using the biweight and the gapper estimator, respectively. Errors are 1 σ. Substructure 6, denoted by an asterisk, corresponds to the group giving the nickname to the Bullet cluster.
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