Table 4.
Rotational temperatures and column densities of the observed molecules.
| Molecule | Lines | Trot | Nmol | Telescope | Ref. |
|---|---|---|---|---|---|
| (K) | (cm−2) | ||||
| CS | (2–1) (3–2) (5–4) | 6.60 ± 0.12 | (8.78 ± 0.47) × 1014 cm−2 | IRAM 30 m | 1, 5, 2 |
| (5–4)(7–6) | 41.56 ± 17.82 | (6.01 ± 2.31) × 1013 cm−2 | IRAM, JCMT | 2, 6 | |
| HC3N | (9–8)(10–9)(11–10)(12–11)(18–17) | 17.75 ± 0.60 | (1.59 ± 0.10) × 1014 cm−2 | IRAM 30 m | 1, 2, 7, 7,1 |
| HCN | (1–0)(2–1)(3–2)(3–2)(4–3) | 17.32 ± 0.49 | (6.78 ± 0.15) × 1013 cm−2 | IRAM, JCMT | 2, 1, 8, 9, 4 |
| HCO+ | (1–0)(2–1) | 3.03 ± 0.02 | (5.81 ± 0.05) × 1014 cm−2 | IRAM 30 m | 2, 1 |
| (3-2)(4–3) | 27.02 ± 9.95 | (2.33 ± 0.94) × 1013 cm−2 | IRAM, JCMT | 8, 10 | |
| HNC | (1–0)(2–1) | 2.51 ± 0.11 | (5.24 ± 0.41) × 1014 cm−2 | IRAM 30 m | 2, 1 |
| (3–2)(4–3) | 13.31 ± 1.93 | (7.98 ± 3.40) × 1013 cm−2 | JCMT 15 m | 9, 4 | |
| HOC+ | (1–0)(2–1) | 5.68 ± 0.78 | (1.82 ± 0.36) × 1013 cm−2 | IRAM 30 m | 2, 1 |
| SiO | (2–1)(3–2) | 3.16 ± 0.19 | (1.03 ± 0.18) × 1014 cm−2 | IRAM 30 m | 2, 11 |
| (3–2)(5–4) | 8.55 ± 0.71 | (2.30 ± 0.44) × 1013 cm−2 | IRAM 30 m | 11, 2 | |
| CH3CN | (5–4)(6–5)(9–8) | 7.88 ± 0.51 | (8.90 ± 1.65) × 1013 cm−2 | IRAM 30 m | 1, 7,1 |
| SO | (2–1)(3–2)(5–4) | 14.13 ± 1.46 | (2.14 ± 0.58) × 1014 cm−2 | IRAM 30 m | 3, 3, 2 |
| HNCO | (4–3)(5–4)(11–10) | 19.77 ± 0.85 | (5.70 ± 0.39) × 1014 cm−2 | IRAM 30 m | 2, 12, 2 |
| CN | (1–0) (2–1) | 5.63 ± 0.38 | (1.38 ± 0.27) × 1015 cm−2 | IRAM 30 m | 3, 2 |
| (2–1) (3–2) | 62.50 ± 89.87 | (9.78 ± 5.08) × 1014 cm−2 | JCMT 15 m | 4, 4 | |
| CH3OH (a) | (2–1)(J–J) | 6.70 ± 0.48 | (2.34 ± 0.52) × 1015 cm−2 | IRAM 30 m | 1, 1 |
| (J–J)(5–4) | 50.09 ± 32.01 | (3.90 ± 1.32) × 1015 cm−2 | IRAM 30 m | 1, 2 | |
| SO2 | (14–14)(5–5) | 4.61 ± 0.39 | (6.29 ± 1.21) × 1014 cm−2 | IRAM 30 m | 2,1 |
| CH3CCH | (5–4)(14–13) | 28.01 ± 3.43 | (3.30 ± 1.04) × 1015 cm−2 | IRAM 30 m | 2,1 |
| CH3OCH3 | (32, 2–31, 3) | 10 (b) | (3.16 ± 1.01) × 1015 cm−2 | IRAM 30 m | 1 |
| N2H+ | (1–0) | 10 (b) | (7.63 ± 1.24) × 1013 cm−2 | IRAM 30 m | 1 |
| 13CCH | (2–1) | 10 (b) | (3.35 ± 0.78) × 1014 cm−2 | IRAM 30 m | 1 |
Notes.
Owing to the emission of CH3OH (5−1, 5 − 40, 4)E comes from a mega-maser (Wang et al. 2014), the rotation temperature of its warmer component is an upper limit.
References. (1) This work; (2) Qiu et al. (2017); (3) Aladro et al. (2013); (4) Pérez-Beaupuits et al. (2009); (5) Mauersberger et al. (1989); (6) Bayet et al. (2009); (7) Aladro et al. (2015); (8) Krips et al. (2008); (9) Pérez-Beaupuits et al. (2007); (10) Tan et al. (2018); (11) Usero et al. (2004); (12) Martín et al. (2009b).
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