Table 1
Locations and properties of the selected regions.
| Region | l | b | Δl | Δb | Distancea | ⟨NH⟩b |
 b
|
⟨NH2⟩c |
| [°] | [°] | [°] | [°] | [pc] | [1021 cm-2] | [1021 cm-2] | [1021 cm-2] | |
|
|
||||||||
| Taurus .................. | 172.5 | −14.5 | 15.0 | 15.0 | 140 | 5.4 | 51.9 | 1.6 |
| Ophiuchus .................. | 354.0 | 17.0 | 13.0 | 13.0 | 140 | 4.4 | 103.3 | 1.1 |
| Lupus .................. | 340.0 | 12.7 | 12.0 | 12.0 | 140 | 3.8 | 30.8 | 1.2 |
| Chamaeleon-Musca . | 300.0 | −15.0 | 16.0 | 16.0 | 160 | 2.3 | 29.7 | 1.3 |
| Corona Australis (CrA) | 0.0 | −22.0 | 12.0 | 12.0 | 170 | 1.1 | 40.5 | 1.2 |
|
|
||||||||
| Aquila Rift .................. | 27.0 | 8.0 | 12.0 | 12.0 | 260 | 9.3 | 58.7 | 1.9 |
| Perseus .................. | 159.0 | −20.0 | 9.0 | 9.0 | 300 | 3.9 | 94.8 | 2.6 |
|
|
||||||||
| IC 5146 .................. | 94.0 | −5.5 | 5.0 | 5.0 | 400 | 3.7 | 22.6 | 1.0 |
| Cepheus .................. | 110.0 | 15.0 | 16.0 | 16.0 | 440 | 4.2 | 21.3 | 1.2 |
| Orion .................. | 212.0 | −16.0 | 16.0 | 16.0 | 450 | 5.0 | 93.6 | 2.2 |
Notes.
The estimates of distances are from: Schlafly et al. (2014) for Taurus, Ophiuchus, Perseus, IC 5146, Cepheus, and Orion; Knude & Hog (1998) for Lupus and CrA; Whittet et al. (1997) for Chamaeleon-Musca; and Straižys et al. (2003) for Aquila Rift.
Using the line integral WCO over − 10 <v∥/ (km s-1) < 10 from the Dame et al. (2001) survey and XCO = 1.8 × 1020 cm-2K-1 km-1 s.
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