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Table A.3

Results of hfs-fitting of N2D+(1–0).

Source Tant·τ V LSR Δv τ rms T ex N tot
(K km s-1) (km s-1) (km s-1) Tmb (K) (K) (1012 cm-2)
A3-MM1 0.103 7.3 <0.20
A-MM4 0.120 11.0 <0.26
A-MM5 0.120 7.3 <0.23
VLA1623a 1.56 ± 0.09 3.644 ± 0.017 0.546 ± 0.032 0.1 0.114 7.7 1.57 ± 0.13
SM1N 1.62 ± 0.06 3.639 ± 0.004 0.498 ± 0.018 0.1 0.074 10.2 1.59 ± 0.08
SM1 2.18 ± 0.08 3.660 ± 0.012 0.593 ± 0.024 0.1 0.107 10.3 2.56 ± 0.14
A-MM6 0.136 7.3 <0.26
SM2 1.06 ± 0.07 3.524 ± 0.016 0.450 ± 0.035 0.1 0.088 10.9 0.97 ± 0.10
A-MM8 0.83 ± 0.15 3.475 ± 0.015 0.171 ± 0.032 0.1 0.063 11.2 0.29 ± 0.08
A-S 0.131 7.3 <0.25
B1-MM1 1.29 ± 0.08 3.990 ± 0.012 0.392 ± 0.027 0.1 0.087 7.3 0.93 ± 0.09
B1-MM3 4.71 ± 0.43 3.855 ± 0.006 0.371 ± 0.014 6.5 ± 1.3 0.090 3.5 ± 0.5 6.22 ± 1.62
B1-MM4 3.19 ± 0.17 3.567 ± 0.008 0.259 ± 0.019 0.1 0.115 4.6 1.81 ± 0.16
2.94 ± 0.15 3.995 ± 0.010 0.363 ± 0.029 0.1 0.115 4.6 2.34 ± 0.22
B1B2-MM1 1.76 ± 0.08 4.021 ± 0.008 0.383 ± 0.018 0.1 0.086 7.3 1.24 ± 0.08
B1B2-MM2 0.135 7.3 <0.26
B2-MM1 1.77 ± 0.09 4.082 ± 0.008 0.374 ± 0.021 0.1 0.092 6.5 1.22 ± 0.09
B2-MM2 1.00 ± 0.07 4.194 ± 0.029 0.752 ± 0.053 0.1 0.100 5.4 1.46 ± 0.15
B2-MM6 2.38 ± 0.07 3.840 ± 0.013 0.759 ± 0.024 0.1 0.107 8.0 3.34 ± 0.15
B2-MM8 0.78 ± 0.06 3.901 ± 0.048 1.241 ± 0.114 0.1 0.104 9.3 1.85 ± 0.23
B2-MM10 0.119 7.3 <0.23
B2-MM14 1.46 ± 0.10 4.129 ± 0.035 0.622 ± 0.049 0.1 0.129 7.0 1.67 ± 0.17
B2-MM15 0.95 ± 0.10 4.365 ± 0.018 0.350 ± 0.045 0.1 0.101 7.3 0.61 ± 0.10
B2-MM16 1.85 ± 0.08 3.877 ± 0.016 0.606 ± 0.019 0.1 0.127 8.8 2.11 ± 0.11
B2-MM17
C-We 1.63 ± 0.10 3.575 ± 0.007 0.236 ± 0.015 0.1 0.088 5.4 0.75 ± 0.07
C-N 10.07 ± 0.65 3.795 ± 0.002 0.228 ± 0.006 6.4 ± 0.9 0.127 4.4 ± 0.7 5.25 ± 1.08
C-MM3
C-MM4
C-MM5 7.42 ± 0.49 3.881 ± 0.003 0.282 ± 0.008 2.5 ± 0.8 0.127 5.9 ± 2.4 3.93 ± 1.29
C-MM6
C-MM7
E-MM1 0.113 7.3 <0.22
E-MM2d 5.91 ± 0.53 4.485 ± 0.004 0.295 ± 0.011 4.9 ± 1.2 0.115 4.0 ± 1.0 4.51 ± 1.30a
E-MM3
E-MM4 0.82 ± 0.07 4.288 ± 0.016 0.357 ± 0.033 0.1 0.081 6.3 0.55 ± 0.07
E-MM5
F-MM1 0.087 5.7 <0.18
F-MM2 1.03 ± 0.09 4.276 ± 0.033 0.767 ± 0.069 0.1 0.121 5.4 1.54 ± 0.19
H-MM1 6.95 ± 0.30 4.243 ± 0.002 0.280 ± 0.005 2.7 ± 0.5 0.081 5.5 ± 1.4 3.76 ± 0.86
I-MM1 5.88 ± 0.31 3.325 ± 0.002 0.283 ± 0.006 2.8 ± 0.6 0.079 5.0 ± 1.4 3.40 ± 0.89

Notes.

(a)

Ntot calculated assuming the line is optically thick, produce large uncertainty which propagates to the RD uncertainty so RD< 2.5 ΔRD. Thus, to measure RD for E-MM2d, Ntot = (2.41 ± 0.07) × 1012 cm-2 calculated assuming the line is optically thin (τ = 0.1, T = 7.3 K) used.

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