Table 1
Spectroscopically confirmed, secure member galaxies of the cluster XDCP J0044.0-2033.
| ID | RA | Dec | zspec | dcen | Ks | J − Ks | i − Ks |
| J2000 | J2000 | arcsec | Vega mag | Vega mag | Vega mag | ||
|
|
|||||||
| 1 | 11.02336 | −20.56509 | 1.5797 | 8.2 | 17.96 | 1.98 | 4.21 |
| 2 | 11.01973 | −20.56936 | 1.5936 | 11.7 | 19.52 | 2.08 | 4.23 |
| 3a | 11.02269 | −20.57125 | 1.5699 | 17.3 | 18.06 | 2.33 | 4.86 |
| 3b | 11.02316 | −20.57135 | 1.5716 | 18.0 | 21.04 | 1.38 | 2.98 |
| 4 | 11.02220 | −20.55395 | 1.5787 | 45.5 | 19.25 | 2.10 | 4.27 |
| 5 | 11.02333 | −20.54957 | 1.5778 | 61.6 | 19.58 | 1.92 | 4.20 |
| 6 | 11.01255 | −20.54218 | 1.5986 | 92.9 | 20.09 | 1.82 | 3.71 |
Notes. The table lists the object IDs, the galaxy coordinates, the cluster-centric distances dcen relative to the XMM-Newton determined centroid of the extended X-ray emission, the total Ks-band magnitude, the J − Ks color, and the i − Ks color within 1′′ apertures. Typical measurement uncertainties for the individual galaxy redshifts are σz ~ 0.0005. The Ks magnitude of ID 3b is given for a 1′′ aperture since there is no clear separation from the main component 3a (see upper right panel of Fig. 10). All galaxies but ID 1 exhibit a detected [O ii] emission line.
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