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Table 1
Derived parameters of the ortho-H2D+ transitions as well as the ortho and para D2H+ fundamental lines. DCO+ 3–2 and 5–4 transitions used in Lis et al. (2002) are also quoted using the estimated frequencies from Caselli & Dore (2005).
| Species | Transition | Frequency | Telescope | Beamsize |  dV |
rms | Binsize | ΔV | VLSR |
| GHz | (′′) | (mK km s-1) | mK | (km s-1) | (km s-1) | (km s-1) | |||
|
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| ortho-H2D+ | 11,0–11,1 | 372.421385 | CSO | 20 | 720 | 80 | 0.080 | 0.36 ± 0.04 | 3.59 ± 0.02 |
| para-D2H+ | 11,0–10,1 | 691.660483 | CSO | 11 | 183 | 170 | 0.080 | 0.29 ± 0.05 | 3.78 ± 0.02 |
| ortho-D2H+ | 11,1–00,0 | 1476.605708 | HIFI/HRS | 14 | ≤ 30 | 120 | 0.012 | ||
| ortho-D2H+ | 11,1–00,0 | 1476.605708 | HIFI/WBS | 14 | ≤ 21 | 21 | 0.203 | ||
|
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| DCO+ | 3–2 | 216.1125822 | CSO | 35 | 3235 | 94 | 0.134 | 0.67 ± 0.03 | 3.55 ± 0.01 |
| DCO+ | 5–4 | 360.1697783 | CSO | 20 | 528 | 109 | 0.081 | 0.54 ± 0.03 | 3.65 ± 0.01 |
Notes. A discussion on the VLSR can be found at the end of Sect. 2.
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