Table A.1
List and properties of the sample of prestellar core (PSC) candidates.
| Region | Source | RA | DEC | Mass [range] (1) | FWHMdec | nH2 | tff (2) | Location (3) |
|---|---|---|---|---|---|---|---|---|
| [deg] | [deg] | [M⊙] | [au] | [×106 cm−3] | [kyr] | |||
| G008.67 | #4 | 271.580761 | -21.6237093 | 7.8 [6.6 – 8.9] | 3870 | 4.1 ± 0.6 | 15.7 ± 1.2 | C |
| G008.67 | #7 | 271.5800126 | -21.6251966 | 13.7 [11.2 – 16.2] | 2780 | 19.3 ± 3.5 | 7.2 ± 0.7 | C |
| G008.67 | #10 | 271.5774356 | -21.6271193 | 7.4 [5.9 – 8.9] | 4120 | 3.2 ± 0.6 | 17.7 ± 1.8 | I |
| G010.62 | #4 | 272.6216933 | -19.9291438 | 11.7 [8.7 – 14.7] | 1840 | 56.7 ± 14.6 | 4.2 ± 0.6 | I |
| G012.80 | #5 | 273.5482204 | -17.9458195 | 7.4 [6.8 – 8.1] | 1450 | 73.6 ± 6.6 | 3.7 ± 0.2 | I |
| G327.29 | #11 | 238.2800319 | -54.6194279 | 8.6 [6.6 – 10.6] | 3480 | 6.2 ± 1.4 | 12.7 ± 1.5 | C |
| G333.60 | (4)#1A | 245.5468839 | -50.0987477 | 54.0 [35.7 – 72.3] | 2640 | 88.8 ± 30.1 | 3.4 ± 0.6 | C |
| G333.60 | (4)#1B | 245.5466503 | -50.0988518 | 40.5 [26.9 – 54.2] | 2020 | 148.8 ± 50.2 | 2.6 ± 0.5 | C |
| G333.60 | #8 | 245.5282954 | -50.1068134 | 6.7 [5.4 – 8.0] | 2510 | 12.8 ± 2.5 | 8.8 ± 0.9 | C |
| G333.60 | #26 | 245.535353 | -50.1041745 | 7.0 [4.9 – 9.1] | 2310 | 17.3 ± 5.1 | 7.6 ± 1.2 | I |
| G333.60 | #45 | 245.549303 | -50.0984873 | 6.4 [4.5 – 8.2] | 4370 | 2.3 ± 0.7 | 20.8 ± 3.2 | C |
| G337.92 | #3 | 250.2949021 | -47.1343006 | 12.0 [9.2 – 14.8] | 2750 | 17.4 ± 4.1 | 7.6 ± 0.9 | C |
| G337.92 | #5 | 250.295556 | -47.134715 | 11.2 [8.7 – 13.7] | 3450 | 8.3 ± 1.9 | 11.0 ± 1.3 | C |
| G338.93 | #5 | 250.1417392 | -45.7025004 | 24.9 [17.4 – 32.4] | 1750 | 140.5 ± 42.4 | 2.7 ± 0.4 | C |
| G338.93 | #7 | 250.1378537 | -45.7040233 | 10.0 [8.2 – 11.8] | 1470 | 95.4 ± 16.8 | 3.2 ± 0.3 | C |
| G338.93 | #13 | 250.1423231 | -45.6931039 | 11.1 [9.5 – 12.7] | 3090 | 11.4 ± 1.7 | 9.4 ± 0.7 | I |
| G338.93 | #16 | 250.1418854 | -45.701708 | 6.5 [4.8 – 8.2] | 2930 | 7.8 ± 2.1 | 11.3 ± 1.6 | C |
| G353.41 | #5 | 262.6101515 | -34.6960014 | 12.7 [9.9 – 15.6] | 2630 | 21.2 ± 4.7 | 6.9 ± 0.8 | C |
| W43-MM1 | #6 | 281.9423152 | -1.909246 | 40.5 [37.3 – 43.6] | 2030 | 146.5 ± 11.4 | 2.6 ± 0.1 | I |
| W43-MM1 | #8 | 281.938703 | -1.9102889 | 8.3 [7.5 – 9.0] | 1350 | 101.6 ± 8.9 | 3.1 ± 0.1 | C |
| W43-MM1 | #14 | 281.944974 | -1.9044595 | 9.1 [8.4 – 9.7] | 1350 | 111.6 ± 8.2 | 3.0 ± 0.1 | I |
| W43-MM1 | #18 | 281.9462451 | -1.9075171 | 18.7 [17.9 – 19.4] | 1930 | 78.6 ± 3.0 | 3.6 ± 0.1 | I |
| W43-MM1 | #21 | 281.9453834 | -1.9082357 | 21.1 [20.3 – 21.9] | 2390 | 46.8 ± 1.7 | 4.6 ± 0.1 | C |
| W43-MM1 | #30 | 281.9456971 | -1.9082389 | 12.2 [11.8 – 12.6] | 1350 | 150.0 ± 5.4 | 2.6 ± 0.0 | C |
| W43-MM1 | #32 | 281.9455609 | -1.9075139 | 19.5 [18.8 – 20.1] | 2180 | 56.9 ± 1.9 | 4.2 ± 0.1 | C |
| W43-MM2 | #2 | 281.9001273 | -2.0224281 | 13.0 [11.7 – 14.3] | 2020 | 47.7 ± 4.8 | 4.6 ± 0.2 | C |
| W43-MM2 | #9 | 281.9034863 | -2.0173945 | 7.8 [6.7 – 8.8] | 2160 | 23.3 ± 3.3 | 6.6 ± 0.5 | I |
| W43-MM2 | #12 | 281.9027193 | -2.014794 | 16.0 [14.0 – 18.1] | 3390 | 12.4 ± 1.6 | 9.0 ± 0.6 | I |
| W43-MM3 | #3 | 281.9207197 | -2.0057611 | 10.8 [9.4 – 12.2] | 2420 | 23.1 ± 3.0 | 6.6 ± 0.4 | C |
| W51-E | #14 | 290.9326071 | 14.510126 | 35.6 [28.8 – 42.3] | 2080 | 119.7 ± 22.7 | 2.9 ± 0.3 | I |
| W51-E | #28 | 290.9319946 | 14.5089561 | 7.5 [6.7 – 8.2] | 1600 | 55.1 ± 5.8 | 4.3 ± 0.2 | C |
| W51-E | #31 | 290.9288221 | 14.5159753 | 9.5 [9.3 – 9.7] | 4170 | 3.9 ± 0.1 | 15.9 ± 0.2 | C |
| W51-IRS2 | #8 | 290.9091553 | 14.5185781 | 17.4 [14.0 – 20.9] | 1930 | 73.4 ± 14.5 | 3.7 ± 0.4 | I |
| W51-IRS2 | #9 | 290.9103723 | 14.5113251 | 16.5 [13.0 – 19.9] | 2510 | 31.5 ± 6.7 | 5.6 ± 0.6 | I |
| W51-IRS2 | #11 | 290.9187587 | 14.5177443 | 23.9 [17.8 – 30.0] | 2950 | 28.2 ± 7.2 | 6.0 ± 0.8 | C |
| W51-IRS2 | #17 | 290.9245968 | 14.5197752 | 11.5 [9.4 – 13.5] | 3950 | 5.6 ± 1.0 | 13.3 ± 1.2 | I |
| W51-IRS2 | #22 | 290.9255723 | 14.5112676 | 7.6 [6.1 – 9.1] | 1350 | 93.5 ± 18.6 | 3.3 ± 0.3 | I |
| W51-IRS2 | #24 | 290.9114738 | 14.5186878 | 7.7 [6.4 – 9.1] | 3120 | 7.7 ± 1.4 | 11.4 ± 1.0 | I |
| W51-IRS2 | #28 | 290.9052888 | 14.5184717 | 10.1 [8.7 – 11.5] | 3910 | 5.1 ± 0.7 | 14.0 ± 1.0 | I |
| W51-IRS2 | #32 | 290.9069467 | 14.5064897 | 9.7 [8.3 – 11.2] | 1900 | 43.0 ± 6.4 | 4.8 ± 0.4 | I |
| W51-IRS2 | #38 | 290.9262262 | 14.515357 | 7.7 [6.1 – 9.4] | 1800 | 40.1 ± 8.6 | 5.0 ± 0.6 | I |
| W51-IRS2 | #42 | 290.9180791 | 14.5179626 | 11.5 [8.7 – 14.2] | 2820 | 15.5 ± 3.7 | 8.0 ± 1.0 | I |
Bold font is used to present the robust sample of PSC candidates with M > 16M⊙.
1 Mean masses of the candidates with their range using the non-corrected PPMAP dust temperature (see Dell’Ova et al. 2024) and 20 K as upper and lower limits in temperature.
2 Volume density and free-fall time (see section 4.5).
3 Location of the source with C meaning clustered and I meaning isolated, based on the criteria described in Sect. 4.5.
4 This source contains two continuum peaks that can be seen in the GExt2D second derivative map. We then use the flux density and size of each GExt2D source to compute the masses and densities of the two peaks (see section 4.4).
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