Table 2
Source sizes, temperatures, and molecular column densities.
| Source | Size | Tk | Tex | NH3 | c-C3H2 | HC3N | HC5N | CCS | C3S | c-C3HD |
|---|---|---|---|---|---|---|---|---|---|---|
| HOPS-108 | 58 | 19.6 | 8.0 | 1.36(15) | 1.05(13) | 9.71(12) | 1.95(12) | 5.27(12)a | 3.57(11)a | 8.19(11)a |
| HOPS-373 | 50 | 14.9 | 7.0 | 6.63(14) | 8.88(12) | 1.00(12)a | 2.56(11)a | 1.13(12) | 4.22(11)a | 1.12(12)a |
| Vela C IRS 31 14 | 41 | 15.1 | 6.0 | 2.49(15) | 1.83(13) | 6.60(12) | 1.57(12) | 3.77(12) | 7.93(11) | 1.38(12)a |
| BHR71-IRS1 | 24 | 13.1 | 10.0 | 1.77(15) | 1.22(14) | 3.81(13) | 7.90(12) | 9.78212) | 7.54(12)b | 1.31(13)a |
| G300.91+0.88 | 68 | 14.7 | 4.5 | 1.76(16) | 2.21(13) | 8.15(12) | 1.52(12) | 4.49(12) | 1.46(12) | 7.95(11)a |
| G304.76+1.34 | 109 | 13.7 | 4.3 | 1.40(16) | 1.73(13) | 4.80(12) | 1.26(12) | 3.99(12) | 9.71(11) | 1.09(12)a |
| G309.91+0.32 | 66 | 17.6 | 5.2 | 9.82(15) | 1.29(13) | 7.34(12) | 1.53(12) | 2.72(12) | 9.70(11)a | 2.08(12) |
| G300.91+0.88 | 68 | 14.7 | 7.0 | 2.13(15) | 2.01(13) | 7.53(12) | 1.12(12) | 4.70(12) | 1.22(12) | 8.08(11)a |
| G304.76+1.34 | 109 | 13.7 | 7.0 | 1.32(15) | 1.56(13) | 3.06(12) | 7.98(11) | 4.04(12) | 7.71(11) | 1.07(12)a |
| G309.91+0.32 | 66 | 17.6 | 7.0 | 2.86(15) | 1.35(13) | 7.34(12) | 1.35(12) | 3.00(12) | 9.11(11)a | 2.23(12) |
Notes. Entries in the table are source, source size (arcsec), kinetic and excitation temperatures (K), and molecular column densities (cm−2, with the value in parentheses being the exponent). (a)3σ upper limit. (b)Given the difference in the center velocity and line width compared to CCS, we consider this an upper limit. The bottom three lines show revised column densities G300.91+0.88, G304.76+1.34, and G309.91+0.32 assuming an excitation temperature of 7.0 K, as described in the text.
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