Table 1
Overview of 15 ALMA-IMF protoclusters.
| Protocluster (name) | RA [ICRS] | Dec [ICRS] | Long. [deg.] | Lat. [deg.] | Vsysa [km s−1] | db [kpc] | Massc [×102 M⊙] | Evolutionary stage [Y/I/E]d | Imaged area [pc × pc] |
|---|---|---|---|---|---|---|---|---|---|
| W43-MM1 | 18:47:47.00 | −01:54:26.0 | 30.82 | −0.057 | +96.7 | 5.5±0.4 | 170±60 | Y | 3.1 × 2.3 |
| W43-MM2 | 18:47:36.61 | −02:00:51.1 | 30.70 | −0.067 | +92.0 | 5.5±0.4 | 150±60 | Y | 2.6 × 2.4 |
| G327.29 | 15:53:08.13 | −54:37:08.6 | 327.29 | −0.579 | −45.5 | 2.5±0.5 | 80±40 | Y | 1.3 × 1.3 |
| G328.25 | 15:57:59.68 | −53:58:00.2 | 328.25 | −0.532 | −44.3 | 2.5±0.5 | 10±5 | Y | 1.4 × 1.4 |
| G337.92 | 16:41:10.62 | −47:08:02.9 | 337.92 | −0.477 | −39.8 | 2.7±0.7 | 30±20 | Y | 1.2 × 1.1 |
| G338.93 | 16:40:34.42 | −45:41:40.6 | 338.93 | +0.554 | −63.1 | 3.9±1.0 | 40±30 | Y | 1.6 × 1.6 |
| W43-MM3 | 18:47:41.46 | −02:00:27.6 | 30.72 | −0.082 | +93.2 | 5.5±0.4 | 80±30 | I | 2.7 × 2.4 |
| W51-E | 19:23:44.18 | +14:30:29.5 | 49.49 | −0.389 | +57.8 | 5.4±0.3 | 240±70 | I | 2.6 × 2.4 |
| G008.67 | 18:06:21.12 | −21:37:16.7 | 8.68 | −0.361 | +36.2 | 3.4±0.3 | 30±10 | I | 2.2 × 1.4 |
| G351.77 | 17:26:42.62 | −36:09:20.5 | 351.77 | −0.537 | −3.2 | 2.0±0.7 | 20±10 | I | 1.3 × 1.3 |
| G353.41 | 17:30:26.28 | −34:41:49.7 | 353.40 | −0.361 | −16.6 | 2.0±0.7 | 20±10 | I | 1.3 × 1.3 |
| W51-IRS2 | 19:23:39.81 | +14:31:03.5 | 49.49 | −0.369 | +59.3 | 5.4±0.3 | 250±80 | E | 2.6 × 2.4 |
| G010.62 | 18:10:28.84 | −19:55:48.3 | 10.62 | −0.384 | −2.7 | 4.95±0.5 | 110±40 | E | 2.3 × 2.2 |
| G012.80 | 18:14:13.37 | −17:55:45.2 | 12.80 | −0.199 | +35.5 | 2.4±0.2 | 120±40 | E | 1.5 × 1.5 |
| G333.60 | 16:22:09.36 | −50:05:58.9 | 333.60 | −0.212 | −47.4 | 4.2±0.7 | 130±60 | E | 2.9 × 2.9 |
Notes. Col. 1: protocluster names. Cols. 2–5 represent the right ascension (RA), declination (Dec), longitude, and latitude of the center of the mosaic observation that have been used in the ALMA-IMF survey. Col. 6: systemic velocity (Vsys) of the protoclusters. Col. 7: distance (d) of the protoclusters. Col. 8: mass of the protoclusters within the area of 1.3 mm continuum. Col. 9: evolutionary stage of the protoclusters and Col. 10: imaged area in the 1.3 mm band. aVsys is measured based on the C18O (J= 2–1) line, which is discussed in Section 3. b Distance of the protoclusters taken from Motte et al. (2022). c Cloud mass computed from the point process mapping (PPMAP) analysis of the dust continuum emission (Dell’Ova et al. 2024). d Y → young, I → intermediate, and E → evolved phase of the protocluster, as defined by Motte et al. (2022).
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