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Table A.7

Steady-state model results for nitrogen compounds and their deuterated counterparts.

TMC1 L134N

nH (cm-3) 2 × 104 2 × 105
T (K) 10 10

Molecule Old Present Old Present

N 4.2 × 10-5 4.3 × 10-5 4.8 × 10-6 4.9 × 10-6
N2 4.3 × 10-5 4.3 × 10-5 1.9 × 10-5 1.8 × 10-5
NH 3.0 × 10-9 3.0 × 10-9 2.1 × 10-9 2.1 × 10-9
ND 9.8 × 10-11 9.6 × 10-11 2.3 × 10-10 2.3 × 10-10
NH/ND 30.6 31.2 9.1 9.1
15NH 7.0 × 10-12 6.9 × 10-12 5.0 × 10-12 5.0 × 10-12
15ND 1.6 × 10-13 1.6 × 10-13 4.0 × 10-13 3.9 × 10-13
15NH/15ND 43.7 43.7 12.5 12.8
NH2 3.3 × 10-10 3.3 × 10-10 1.7 × 10-10 1.6 × 10-10
NHD 1.7 × 10-11 4.7 × 10-12 1.4 × 10-11 7.0 × 10-12
NH2/NHD 19 70.2 12 22.9
15NH2 8.6 × 10-13 8.0 × 10-13 4.4 × 10-13 4.1 × 10-13
15NHD 5.6 × 10-14 9.2 × 10-15 4.0 × 10-14 1.6 × 10-14
15NH2/15NHD 15.3 22.5 11 25.6
NH3 1.3 × 10-9 1.3 × 10-9 6.0 × 10-9 5.6 × 10-9
NH2D 5.8 × 10-11 1.7 × 10-11 3.3 × 10-10 1.7 × 10-10
NH3/NH2D 22.4 75.0 18.2 32.9
15NH3 3.3 × 10-12 3.0 × 10-12 1.5 × 10-11 1.4 × 10-11
15NH2D 2.1 × 10-13 3.6 × 10-14 9.8 × 10-13 4.0 × 10-13
15NH3/15NH2D 15.7 143 15.3 35.0
HCN 5.9 × 10-10 5.9 × 10-10 5.4 × 10-10 5.2 × 10-10
DCN 6.2 × 10-12 4.4 × 10-12 2.5 × 10-11 2.1 × 10-11
HCN/DCN 95.2 134 21.6 24.8
HNC 7.44 × 10-10 7.4 × 10-10 8.4 × 10-10 8.2 × 10-10
DNC 1.1 × 10-11 7.5 × 10-12 5.2 × 10-11 4.4 × 10-11
HNC/DNC 67.6 99 16.2 18.6
N2H+ 1.3 × 10-10 1.3 × 10-10 2.2 × 10-10 2.1 × 10-10
N2D+ 4.5 × 10-12 4.5 × 10-12 2.5 × 10-11 2.5 × 10-11
N2H+/N2D+ 28.9 28.9 8.8 8.8

Notes. Old refers to the values displayed in Roueff et al. (2015).

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