Table 3
Properties of infrared data.
| Source(a) | S4.5 μm | S8.0 μm | S24 μm | S70 μm | Infrared(b) | Hii(c) | Distance | Refs. for dist. |
|---|---|---|---|---|---|---|---|---|
| mJy | mJy | mJy | Jy | kpc | ||||
| G18.17 | 1.3(0.2) | 916.3(68.0) | 214.9(56.6) | 2.5(0.1) | Quiet | No | 3.73 | 1, 2 |
| G18.21 | 13.6(0.8) | 27.9(1.7) | 773.3(14.2) | 4.6(0.8) | Quiet | No | 3.60 | 1, 2 |
| G23.97N | – | – | – | 28.9(0.4) | Quiet | No | 4.68 | 1, 2 |
| G23.98 | 4.9(0.6) | 167.8(6.5) | 8.7(2.6) | – | Quiet | No | 4.68 | 1, 2 |
| G23.44-l | 14.9(2.0) | 34.3(0.2) | 1683.5(165.5) | 150.3(0.5) | Bright | Yes | 5.88 | 3 |
| G23.44-u | 25.7(2.2) | 23.6(0.2) | 300.1(68.3) | 115.6(0.5) | Quiet | No | 5.88 | 3 |
| G23.97S | 10.2(0.4) | 5.6(0.8) | 709.6(3.6) | 179.8(0.4) | Quiet(d) | Yes(d) | 4.70 | 1, 2 |
| G25.38-l | 45.7(0.5) | 50.1(3.6) | 252.3(38.6) | 28.7(0.4) | Quiet | No | 5.60 | 4, 5, 6 |
| G25.38-u | – | – | – | – | Quiet | No | 5.60 | 4, 5, 6 |
| G25.71-l | 154.4(2.0) | 272.0(8.0) | 6197.1(122.6) | 399.9(0.6) | Bright | Yes | 9.50 | 6, 7 |
| G25.71-u | 138.7(2.2) | 2453.2(24.9) | 16 109.0(83.8) | 182.3(0.5) | Bright | Yes | 9.50 | 6, 7 |
Notes. (a)The “-l” and “-u” following source names indicate the lower and upper clusters (e.g. No. 1 and No. 2 at 3.5 mm in Fig. 1d) in corresponding clumps. (b) Mainly based on a threshold of MIPS 24 μm flux S24 μm = 15.0 Jy at a distance of 1.7 kpc (Motte et al. 2007), this flux limit can be rescaled to the distance of the sources in this table. (c)Compact Hii region candidate, judged by whether there is a corresponding 1.3 cm continuum at its sensitivity. (d) G23.97S is actually associated with the very weak infrared source at the north of the bright one (see Fig. D.5e), so it is an infrared quiet source. However, 1.3 cm continuum was detected so it belongs to an Hii region. References.1: Wienen et al. (2012); 2: Reid et al. (2009); 3: Brunthaler et al. (2009); 4: Anderson & Bania (2009); 5: Ai et al. (2013); 6: Urquhart et al. (2013); 7: Lockman (1989).
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