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Table 3

Components with weak CO emission toward the continuum target.

Target V τ(1−0) dN(CO)/dV Texc(1−0) p(H2) n(H2)a τ(HCO+)dv/total
km s-1 K 1015   cm-2 (km s-1)-1 K 103   cm-3 K cm-3

B0212 –10.3 0.49 0.40 0.65 3.4–3.6 1.9–2.5 75–100 0.122
–0.05 0.95 <0.14b 1.11 <3.1–3.2 <0.9–1.1 <35–45 0.102
B0224 –10.6 0.43 <0.10 0.48 <3.0–3.1 <0.8–1.0 <30–40 0.161
B0355 –13.9 0.45 0.31 0.52 3.8–4.0 3.0–3.5 120–140 0.224
–4.0 0.86 0.37 1.10 3.6–3.8 2.1–2.5 85–100 0.204
B0528 2.8 <0.11 <0.16 0.080
B1730 5.1 1.15 0.24 1.42 3.5–3.7 1.8–2.2 70–90 1.000
B1928  −3 <0.11 <0.11 1.000

Notes. Using CO parameters originally derived by Liszt & Lucas (1998) and τ(HCO + ) from Lucas & Liszt (1996); ;

(a)

at TK = 25 K

(b)

upper limits in this column are 2σ.

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