Table 3
Column densities and upper limits for H
and its isotopologues.
| Transition | λ | A | Wλ | Nlevel | Ntotal | Ntotal/ |
|
|---|---|---|---|---|---|---|---|
| [μm] | [s−1] | [10−6 μm] | [1013 cm−2] | [1013 cm−2] | [1013 cm−2] | ||
H |
Q(1,1) | 3.9286 | 66.28 | 3.4 ± 1.1 | 16.2 ± 5.1 | ||
| Q(1,0) | 3.9530 | 128.7 | 4.4 ± 1.5 | 10.6 ± 3.7 | |||
| R(1,1)u | 3.6681 | 60.19 | 4.1 ± 0.3 | 17.2 ± 1.4 | |||
| R(1,0) | 3.6685 | 98.63 | 4.9 ± 0.3 | 12.5 ± 0.7 | |||
| R(2,2)l | 3.6205 | 83.82 | <0.6 | <2.4 | |||
| R(3,3)l | 3.6802 | 106.2 | <0.4 | <1.6 | 29.5 ± 1.5 | ||
| H2D+ | (0,0,0) →(1,1,1) | 4.1620 | 20.3 | <4.4 | <6.0 | ||
| (1,1,1) →(2,0,1) | 4.1363 | 3.31 | <4.8 | <24.9 | |||
| (1,1,1) →(2,2,0) | 3.9850 | 5.39 | <2.5 | <9.2 | <6.0 | <0.24 | |
D |
(0,0,0) →(1,0,1) | 5.2964 | 25.3 | <2.6 | <3.2 | <3.2 | <0.13 |
Notes. Uncertainties are for 1σ. Upper limits are for 3σ.
λ: computed wavelengths are from Neale et al. (1996)
for H
, and Sochi & Tennyson (2010) for H2D+; D
wavelengths were measured in the laboratory by Amano et al. (1994). Wλ: equivalent widths. Nlevel: level column densities. Ntotal: total column densities. N(1,0) and N(1,1) are added for H
; for H2D+
and D
N(0,0,0) are taken as total column.
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