Table 5:
A comparison of steady-state molecular D/H ratios from gas-phase models. T=10 K, n(H2)=104 cm-3.
| |
NSM |
RATE99 |
| HD/H2 |
2.8(-5) |
2.7(-5) |
| D2/H2 |
7.2(-7) |
7.6(-7) |
| H2D+/H3+ |
1.1(-1) |
1.1(-1) |
| HD2+/H3+ |
6.8(-3) |
7.8(-3) |
| D3+/H3+ |
3.9(-4) |
4.8(-4) |
| N2D+/N2H+ |
4.2(-2) |
4.6(-2) |
| DCO+/HCO+ |
5.0(-2) |
5.2(-2) |
| DCS+/HCS+ |
1.3(-2) |
3.5(-2) |
| D/H |
1.2(-2) |
1.3(-2) |
| ND/NH |
4.7(-2) |
5.3(-2) |
| NH2D/NH3 |
3.1(-2) |
2.5(-2) |
| NHD2/NH3 |
3.2(-4) |
2.5(-4) |
| ND3/NH3 |
1.4(-6) |
9.7(-7) |
| DCN/HCN |
2.1(-2) |
2.0(-2) |
| DNC/HNC |
1.5(-2) |
1.8(-2) |
| HDCO/H2CO |
4.0(-2) |
4.2(-2) |
| D2CO/H2CO |
3.9(-4) |
4.3(-4) |
| OD/OH |
4.7(-2) |
6.3(-2) |
| HDO/H2O |
2.3(-2) |
2.3(-2) |
| D2O/H2O |
7.1(-5) |
7.2(-5) |
| CH3OD/CH3OH |
2.5(-2) |
2.9(-2) |
| CH2DOH/CH3OH |
9.2(-2) |
9.3(-2) |
| CH2DOD/CH3OH |
1.8(-3) |
2.3(-3) |
| CHD2OH/CH3OH |
3.8(-3) |
4.0(-3) |
| CHD2OD/CH3OH |
6.9(-5) |
9.3(-5) |
| CD3OH/CH3OH |
9.1(-5) |
9.3(-5) |
| CD3OD/CH3OH |
1.5(-6) |
2.1(-6) |
| HDCS/H2CS |
4.5(-2) |
4.4(-2) |
| D2CS/H2CS |
4.5(-4) |
4.3(-4) |
| HDS/H2S |
3.9(-2) |
3.3(-2) |
| D2S/H2S |
2.1(-4) |
8.5(-5) |
Note:
a(-
b) implies
.
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