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Table 1.
Spectroscopic and image parameters of the detected lines.
| Line | Transition | Frequencya | log10(Aij)a | Eupa | gupa | Spect. Res. | Beam | RMS | ALMA project |
|---|---|---|---|---|---|---|---|---|---|
| [GHz] | [K] | [km s−1] | [″ × ″(°)] | [mJy/beam ] | |||||
| C18O | 2–1 | 219.56036 | −6.2 | 16 | 5 | 0.16 | 1.67 × 1.26 (−72) | 13.2 | 2019.1.00951 |
| N2D+ | 3–2 | 231.32183 | −3.8 | 22 | 63 | 5.1 | 1.5 × 1.2 (−74) | 2.8 | 2019.1.00951 |
| DCO+ | 3–2 | 216.11258 | −3.1 | 21 | 7 | 5.4 | 1.28 × 1.61 (−75) | 3.5 | 2019.1.00951 |
| HCO+ | 1–0 | 89.18852 | −4.4 | 5 | 3 | 0.24 | 1.41 × 1.75 (62) | 1.7 | 2022.1.00126 |
a
Notes. Spectroscopic parameters come from Tinti et al. (2007) for HCO+, Winnewisser et al. (1985) for C18O, Amano et al. (2005), Pagani et al. (2009) for N2D+, (Caselli & Dore 2005; Lattanzi et al. 2007) for DCO+, from the CDMS catalog (Müller et al. 2005).
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