Table 2.
Properties of the ALMA CO(2–1) observations.
| IRAS name | Nucleus | Synthesised beam | Sensitivity | int. time | zCO | SCO |  |
log M(H2) | FWHM | PA |
|---|---|---|---|---|---|---|---|---|---|---|
| (arcsec × arcsec) | [μJy beam−1] | [min] | [Jy km s−1] | [K km s−1 pc2] | [M⊙] | [km s−1] | [deg] | |||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) |
| 00091−0738 | S | 0.29 × 0.24 | 552 | 100 | 0.117984 | 14.4 ± 0.2 | 9.33 | 9.26 | 294 ± 5 | 303 |
| N | 0.118188 | 12.1 ± 0.2 | 9.25 | 9.18 | 203 ± 5 | 300 | ||||
| 00188−0856 | 0.14 × 0.12 | 265 | 69 | 0.128500 | 20.6 ± 0.2 | 9.55 | 9.48 | 274 ± 5 | 268 | |
| 00509+1225 | 0.35 × 0.31 | 332 | 48 | 0.061112 | 56.9 ± 0.7 | 9.29 | 9.22 | 376 ± 5 | 136 | |
| 01572+0009 | 0.16 × 0.13 | 279 | 69 | 0.163271 | 10.8 ± 0.3 | 9.47 | 9.40 | 183 ± 16 | 306 | |
| 05189−2524 | 0.59 × 0.49 | 440 | 34 | 0.042731 | 101.1 ± 0.4 | 9.33 | 9.26 | 183 ± 5 | 93 | |
| 07251−0248 | E | 0.36 × 0.31 | 332 | 41 | 0.087787 | 55 | ||||
| W | 0.087817 | 271 | ||||||||
| tot | 68.8 ± 0.7 | 9.77 | 9.70 | 376 ± 5 | ||||||
| 09022−3615 | 0.34 × 0.30 | 348 | 37 | 0.059577 | 329.4 ± 0.8 | 10.14 | 10.07 | 376 ± 5 | 0 | |
| 10190+1322 | E | 0.36 × 0.31 | 330 | 49 | 0.075970 | 61.2 ± 0.2 | 9.61 | 9.54 | 416 ± 5 | 250 |
| W | 0.076626 | 53.2 ± 0.8 | 9.55 | 9.48 | 325 ± 5 | 113 | ||||
| 11095−0238 | NE | 0.31 × 0.25 | 460 | 121 | 0.106535 | 6 | ||||
| SW | 0.106302 | – | ||||||||
| tot | 40.7 ± 0.1 | 9.71 | 9.64 | 264 ± 5 | ||||||
| 12071−0444 | N | 0.22 × 0.16 | 367 | 62 | 0.128969 | 40.8 ± 0.6 | 9.86 | 9.79 | 183 ± 5 | 79 |
| S | 0.128441 | 4.6 ± 0.2 | 8.92 | 8.85 | 335 ± 15 | 172 | ||||
| 12112+0305 | NE | 0.34 × 0.30 | 265 | 74 | 0.072717 | 122.3 ± 0.5 | 9.88 | 9.81 | 335 ± 5 | 80 |
| SW | 0.073203 | 27.8 ± 0.4 | 9.23 | 9.17 | 274 ± 5 | 290 | ||||
| 13120−5453 | 0.65 × 0.65 | 1065 | 19 | 0.031114 | 650.7 ± 2.1 | 9.87 | 9.81 | 335 ± 5 | 91 | |
| 13451+1232 | W | 0.23 × 0.17 | 362 | 81 | 0.121680 | 41.5 ± 0.6 | 9.82 | 9.76 | 386 ± 15 | 242 |
| E | 0.121291 | 2.8 ± 0.4 | 8.65 | 8.58 | 223 ± 36 | – | ||||
| 14348−1447 | SW | 0.35 × 0.30 | 345 | 79 | 0.082750 | 116.1 ± 0.6 | 9.95 | 9.89 | 193 ± 5 | 231 |
| NE | 0.082351 | 64.9 ± 1.0 | 9.70 | 9.63 | 213 ± 5 | 196 | ||||
| 14378−3651 | 0.41 × 0.28 | 554 | 47 | 0.068097 | 63.7 ± 0.6 | 9.52 | 9.45 | 183 ± 5 | 211 | |
| 15327+2340 | 1.28 × 0.81 | 2145 | 2 | 0.018120 | 1693.7 ± 3.5 | 9.84 | 9.77 | 477 ± 5 | 41 | |
| 16090−0139 | 0.20 × 0.17 | 436 | 49 | 0.133690 | 75.5 ± 1.0 | 10.15 | 10.09 | 345 ± 10 | 181 | |
| 16156+0146 | NW | 0.24 × 0.16 | 498 | 76 | 0.132985 | 6.2 ± 0.3 | 9.06 | 8.99 | 223 ± 25 | 323 |
| SE | – | < 0.05⋆ | < 6.96 | < 6.89 | – | – | ||||
| 17208−0014 | 0.47 × 0.47 | 1043 | 7 | 0.042800 | 551.4 ± 2.5 | 10.06 | 10.00 | 427 ± 5 | 109 | |
| 19297−0406 | N | 0.34 × 0.31 | 282 | 89 | 0.085407 | 230 | ||||
| S | 0.085785 | – | ||||||||
| tot | 140.3 ± 0.5 | 10.05 | 9.98 | 386 ± 5 | ||||||
| 19542+1110 | 0.40 × 0.34 | 368 | 44 | 0.062479 | 40.9 ± 0.3 | 9.28 | 9.21 | 274 ± 5 | 229 | |
| 20087−0308 | 0.31 × 0.25 | 287 | 192 | 0.105461 | 94.6 ± 0.3 | 10.05 | 9.98 | 528 ± 5 | 250 | |
| 20100−4156 | SE | 0.20 × 0.14 | 336 | 49 | 0.129848 | 31.3 ± 0.3 | 9.74 | 9.68 | 376 ± 5 | 228 |
| NW | 0.129740 | 2.2 ± 0.2 | 8.59 | 8.52 | 111 ± 6 | 268 | ||||
| 20414−1651 | 0.24 × 0.18 | 375 | 47 | 0.086874 | 51.4 ± 0.6 | 9.62 | 9.56 | 427 ± 5 | 59 | |
| 22491−1808 | E | 0.44 × 0.33 | 342 | 58 | 0.077742 | 59.4 ± 0.2 | 9.59 | 9.52 | 284 ± 5 | 348 |
| W | 0.077560 | 4.1 ± 0.2 | 8.40 | 8.34 | 121 ± 5 | – |
Notes. (1) IRAS name. (2) Name of the nucleus. (3) FWHM of the synthesised ALMA beam. (4) 1σ line rms sensitivity per 10 km s−1 channel. (5) Integration time on source. (6) CO(2–1) redshift, calculated based on the velocity of the moment 1 map at the ALMA continuum peak position. (7) CO(2–1) integrated flux. For the interacting systems for which it is not possible to separate the flux belonging to the two nuclei (07251-0248, 11095-0238, and 19297-0406), we report the total flux of the system, as well as the total CO(2–1) luminosity (Col. 7) and FWHM (Col. 8). ( ⋆ )For the undetected nucleus 16156+014546 SE, we provide a 3σ upper limit, calculated based on the rms and a typical line FWHM of 300 km s−1. (8) CO(2–1) luminosity, calculated as 
, where νrest is the line rest-frequency, DL the luminosity distance and z the redshift (Solomon et al. 1997). (9) Molecular gas mass calculated as 
, where 
(Bolatto et al. 2013b) and αCO = 0.78 M⊙/(K km s−1 pc2) is the ULIRGs-like CO-to-H2 conversion factor. (10) FWHM of the integrated CO(2–1) line, corrected for instrumental resolution. (11) Position angle (PA) of the kinematic major axis measured from the spectro-astrometry of the low-velocity CO channels. The PA is measured east of north (anticlockwise) for the receding half of the galaxy.
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