Table 1.
Massive galaxies in the RO-1001 group.
| ID | A | B | C | D | |
|---|---|---|---|---|---|
| RA | 10:01:23.174 | 10:01:22.964 | 10:01:22.369 | 10:01:23.438 | |
| Dec | 02:20:05.57 | 02:20:05.87 | 02:20:02.63 | 02:20:01.10 | |
| zspec | 2.9214 | 2.9156 | 2.9064 | 2.9 (1) | |
| log M⋆ | M⊙ | 11.13 | 11.13 | 11.23 | 11.00 |
| SFR (2) | M⊙ yr−1 | 306 | 706 | 266 | < 30 |
| Sν (870 μm) | mJy | 4.0 ± 0.1 | 9.1 ± 0.1 | 3.39 ± 0.15 | < 0.3 |
| Sν (1.25 mm) | mJy | 1.2 ± 0.1 | 3.4 ± 0.1 | 1.3 ± 0.2 | < 0.3 |
| Sν (3.4 mm) | μJy | 40 ± 5 | 88 ± 6 | 39 ± 5 | < 15 |
| Sν (10 cm) | μJy | 38 ± 3 | 34 ± 3 | 69 ± 6 | |
| ICO[3 − 2] | Jy × km s−1 | 0.10 ± 0.03 | 0.69 ± 0.05 | 0.63 ± 0.05 | < 0.1 (3) |
| FWZICO[3 − 2] (4) | km s−1 | 381 | 1114 | 1098 | |
| vCO[3 − 2] (5) | km s−1 | 460 | 13 | −690 | |
| r1/2 (6) | ″ | 0.07 ± 0.01 | 0.10 ± 0.003 | 0.11 ± 0.007 |
Notes. (1) Photometric redshifts; (2) Derived from the measurement of individual galaxies assuming the same SED shape as for their coaddition (Fig. 5). (3) Assuming a line width of 500 km s−1. (4) Full width at zero intensity (FWZI) corresponding to the full extraction range of the emission line in velocity. (5) Systemic velocities of the galaxies are relative to the average, flux-weighted redshift of the Lyα emission (z = 2.9154). (6) Reported sizes are half-light radii from a circular Gaussian fit. Errors are much smaller than the beam size given the high-S/N detections. The average size of 0.1″ corresponds to 800 pc at z = 3.
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