Table 4
Properties of SiO (5−4) central sources.
| Source ID | Mgas(a) (M⊙) |  |
Tdust K | Radio emission(b) | IRAC(c) 3.6/5.8/8.0 μm | MIPS(c) 24 μm | Group(d) |
|---|---|---|---|---|---|---|---|
| MDC220-MM1 | 21.4 | – | 18.1 | N | N | N | (1) |
| MDC220-MM2 | 7.64 | – | 17.8 | N | Y | Y | (3) |
| MDC248-MM1 | 39.9 | 39.1 | 18.4 | K | Y | Y | (3) |
| MDC248-MM2 | 9.81 | 65.8 | 18.3 | K | Y | Y | (3) |
| MDC248-MM3 | 0.93 | 32.7 | 17.9 | N | N | N | (1) |
| MDC310-MM1 | 14.7 | 16.5 | 20.8 | K | Y | Y | (3) |
| MDC341-MM1 | 84.2 | – | 17.4 | K | Y | Y | (3) |
| MDC351-MM2 | 10.3 | 17.0 | 18.0 | K | N | N | (1) |
| MDC351-MM3 | 3.15 | 19.5 | 18.1 | N | N | N | (1) |
| MDC507-MM3 | 8.54 | 35.0 | 17.9 | X/K | N | N | (1) |
| MDC507-MM5 | 7.16 | – | 23.1 | C/X/K | Y | Y | (3) |
| MDC509-MM1 | 15.2 | 23.7 | 20.6 | K | N | Y | (2) |
| MDC509-MM4 | 1.57 | 16.5 | 17.3 | N | N | N | (1) |
| MDC509-MM7 | 1.48 | – | 16.5 | K | N | Y | (2) |
| MDC684-MM1 | 4.20 | 29.2 | 17.8 | K | N | Y | (2) |
| MDC684-MM3 | 1.22 | – | 17.4 | N | N | N | (1) |
| MDC698-MM1 | 9.11 | 21.9 | 17.8 | K | Y | Y | (3) |
| MDC698-MM3 | 0.61 | 18.1 | 16.8 | N | N | N | (1) |
| MDC753-MM4 | 10.3 | 21.6 | 17.0 | N | N | N | (1) |
| MDC753-MM8 | 2.62 | 23.6 | 20.0 | N | Y | Y | (3) |
| MDC801-MM1 | 3.45 | 17.9 | 18.1 | K | N | N | (1) |
| MDC1112-MM1 | 23.7 | – | 27.8 | N | N | Y | (2) |
| MDC1112-MM2 | 10.9 | – | 28.5 | C | Y | Y | (3) |
| MDC1112-MM3 | 19.8 | – | 28.8 | C | Y | Y | (3) |
| MDC1454-MM5 | 8.33 | – | 16.5 | K | N | N | (1) |
| MDC1467-MM17 | 43.1 | – | 23.7 | N | N | N | (1) |
| MDC1467-MM18 | 27.4 | – | 22.5 | N | N | N | (1) |
| MDC1599-MM2 | 31.5 | – | 17.4 | N | N | Y | (2) |
| MDC1599-MM3 | 20.0 | – | 17.2 | N | N | N | (1) |
Notes. (a)Gas mass of the condensations obtained from Cao et al. (2021). (b)Radio emissions (Wang et al. 2022) at the position of SiO central sources: N for emission under 5σ, C/X/K for emission above 5σ at C/X/K bands.(c) Spitzer 3.6/5.8/8.0/24 μm emissions: N for emission under 10σ after excluding emission from the background, Y for emission above 10σ. (d)Evolutionary group classification: (1) for sources undetected from 3.6 to 24 μm, (2) for sources detected at 24 μm but not or partly detected from 3.6 to 8.0 μm, (3) for sources detected at 3.6–24 μm.
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