Table 1.
Catalog of the serendipitous emitters in ALPINE (confirmed and candidates; the latter are marked with an *).
| ID | Line | RA | Dec | S/N | Frequency | FWHM | Line flux | Continuum flux | Optical/NIR | Ancillary | zline | |Δz| | log Lline | Size | Fidelity | Distance |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (deg) | (deg) | (GHz) | ( km s−1) | (Jy km s−1) | (mJy) | counterpart | redshift | (L⊙) | (arcsec) | (arcsec) | ||||||
| S842313 | [C II] | 150.22704 | 2.57671 | 28.18 | 343.124 | 889 ± 35 | 8.45 ± 0.29 | 8.24 ± 0.09 | Yes | spec-z | 4.5389 ± 0.0001 | 0.0148 | 9.72 | 0.89″ × 0.45″ | 1.00 | 1.17 |
| S848185 (a) | [C II] | 150.08626 | 2.58895 | 15.97 | 301.839 | 472 ± 20 | 11.57 ± 0.65 | 5.983 ± 0.227 | Yes | spec-z | 5.2965 ± 0.0002 | 0.0034 | 9.96 | 0.91″ × 0.61″ | 1.00 | 15.17 |
| S665626 | [C II]* | 150.3076 | 2.31126 | 10.76 | 340.752 | 324 ± 19 | 1.47 ± 0.12 | 0.392 ± 0.087 | No | … | 4.5775 ± 0.0001 | 0.00020 | 8.96 | 0.66″ ± 0.46 | 1.00 | 6.35 |
| S5101209780 | [C II] | 150.38937 | 2.36906 | 10.66 | 341.275 | 356 ± 19 | 2.50 ± 0.18 | … | Yes | photo-z | 4.5686 ± 0.0001 | 0.0014 | 9.19 | 1.65″ × 1.26″ | 1.00 | 1.64 |
| S818760 | [C II]* | 150.47784 | 2.54207 | 10.25 | 341.450 | 202 ± 12 | 0.78 ± 0.06 | 0.425 ± 0.104 | No | … | 4.56609 ± 0.00008 | 0.0048 | 8.69 | Not resolved | 1.00 | 2.73 |
| S787780 | [C II] | 149.98694 | 2.4967 | 9.02 | 344.866 | 258 ± 14 | 1.13 ± 0.08 | 0.398 ± 0.106 | Yes | spec-z | 4.51095 ± 0.00009 | 0.00005 | 8.84 | Not resolved | 1.00 | 2.49 |
| S510327576 | [C II] | 150.11117 | 1.78692 | 8.14 | 355.894 | 337 ± 23 | 1.75 ± 0.16 | … | Yes | photo-z | 4.3405 ± 0.0002 | 0.2194 | 9.00 | 1.1″ × 0.84″ | 1.00 | 7.15 |
| S873321 | [C II] | 150.01341 | 2.62712 | 8.0 | 308.730 | 266 ± 39 | 1.50 ± 0.29 | … | Yes | spec-z | 5.1560 ± 0.0003 | 0.0018 | 9.05 | 1.26″ ± 0.44″ | 1.00 | 12.69 |
| S378903 | [C II] | 150.29589 | 1.86892 | 7.5 | 295.858 | 249 ± 26 | 0.58 ± 0.08 | … | yes | photo-z | 5.4238 ± 0.0002 | 0.0059 | 8.67 | Not resolved | 1.00 | 6.50 |
| S5100822662 | [C II]* | 149.74141 | 2.08131 | 6.39 | 344.256 | 56 ± 7 | 0.17 ± 0.03 | … | No | … | 4.52071 ± 0.00004 | 0.00021 | 8.02 | Not resolved | 0.89 | 1.32 |
| S859732 | [C II]* | 149.9989 | 2.60632 | 6.34 | 343.096 | 99 ± 15 | 1.21 ± 0.24 | … | No | … | 4.5393 ± 0.0001 | 0.0075 | 8.87 | Not resolved | 0.86 | 12.07 |
| S5100969402 | [C II] | 150.33384 | 2.28427 | 5.99 | 340.402 | 263 ± 38 | 0.32± 0.06 | … | Yes | photo-z | 4.5832 ± 0.0002 | 0.0047 | 8.30 | Not resolved | 0.51 | 2.31 |
| S5110377875 | CO(7–6) | 150.38494 | 2.40665 | 9.85 | 354.109 | 183 ± 9 | 1.35 ± 0.09 | 3.512 ± 0.163 | Yes | photo-z | 1.27793 ± 0.00002 | … | 7.60 | 0.88″ ± 0.59″ | 1.00 | 6.53 |
| S460378 | CO(5–4) | 150.04929 | 1.9996 | 5.97 | 295.935 | 855 ± 102 | 1.11 ± 0.18 | 0.680 ± 0.117 | Yes | photo-z | 0.9472 ± 0.0001 | … | 7.12 | Not resolved | 0.48 | 7.99 |
Notes. The sources names are labeled according to the ID number of the UV target in the same pointings, preceded by the letter “S” that stands for “serendipitous”. The reported parameters were estimated using a Gaussian fit (see Appendix A) to the line emission. Also, the RA and Dec coordinates, the de-convolved sizes, and the distance from the central target (in arcsec) are reported. We show also the redshift separation Δz between the central target and the serendipitous [C II] line in the same pointing. The only galaxy in the “field” sample is S510327576 (see Sect. 5). The continuum flux density was measured by Bethermin et al. (2020). We report also the two CO line detections.
We note that the difference between the line flux of S848185 reported in this work and in Riechers et al. (2014) is due to the use of different apertures. This difference has a negligible impact on the LF.
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