Table 3
Targeted lines and their spectroscopic properties.
| Molecule | Transition | Freq. | Eup | Aij | Observation mode | Telescope |
|---|---|---|---|---|---|---|
| [GHz] | [K] | [s−1] | Single-point (S)/Map (M) | |||
| CH3OH | 5−1–40 E | 84.521 | 40.4 | 1.97E-06 | S and M | IRAM-30 m + Nobeyama-45 m |
| 2−1–1−1 E | 96.739 | 12.5 | 2.56E-06 | M | IRAM-30 m | |
| 20–10 A | 96.741 | 6.9 | 3.41E-06 | M | IRAM-30 m | |
| 20–10 E | 96.745 | 20.0 | 3.42E-06 | M | IRAM-30 m | |
| 21–11 E | 96.755 | 28.0 | 2.62E-06 | M | IRAM-30 m | |
| 51–41 A | 239.746 | 49.1 | 5.66E-05 | S | IRAM-30 m | |
| 50–40 E | 241.700 | 47.9 | 6.04E-05 | S | IRAM-30 m | |
| 5−1–4−1 E | 241.767 | 40.4 | 5.81E-05 | S | IRAM-30 m | |
| 50–40 A | 241.791 | 34.8 | 6.05E-05 | S | IRAM-30 m | |
| 53–43 A | 241.832(a) | 84.6 | 3.87E-05 | S | IRAM-30 m | |
| 53–43 A | 241.833(a) | 84.6 | 3.87E-05 | S | IRAM-30 m | |
| 52–42 A | 241.842 | 72.5 | 5.11E-05 | S | IRAM-30 m | |
| 53–43 E | 241.843 | 82.5 | 3.88E-05 | S | IRAM-30 m | |
| 53–43 E | 241.852 | 97.5 | 3.89E-05 | S | IRAM-30 m | |
| 51–41 E | 241.879 | 55.9 | 5.96E-05 | S | IRAM-30 m | |
| 52–42 A | 241.887 | 72.5 | 5.12E-05 | S | IRAM-30 m | |
| 52–42 E | 241.904(a) | 57.1 | 5.03E-05 | S | IRAM-30 m | |
| 52–42 E | 241.904(a) | 60.7 | 5.09E-05 | S | IRAM-30 m | |
| 51–41 A | 243.915 | 49.7 | 5.97E-05 | S | IRAM-30 m | |
| 21–10 E | 261.805 | 28.0 | 5.57E-05 | S | IRAM-30 m | |
| CCH | N = 1–0, J = 3/2–1/2, F = 1–1 | 87.284 | 4.2 | 2.60E-07 | S and M | IRAM-30 m + Nobeyama-45 m |
| N = 1–0, J = 3/2–1/2, F = 2–1 | 87.316 | 4.2 | 1.53E-06 | S and M | IRAM-30 m + Nobeyama-45 m | |
| N = 1–0, J = 3/2–1/2, F = 1–0 | 87.328 | 4.2 | 1.27E-06 | S and M | IRAM-30 m + Nobeyama-45 m | |
| N = 1–0, J = 1/2–1/2, F = 1–1 | 87.402 | 4.2 | 1.27E-06 | S and M | IRAM-30 m + Nobeyama-45 m | |
| N = 1–0, J = 1/2–1/2, F = 0–1 | 87.407 | 4.2 | 1.54E-06 | S and M | IRAM-30 m + Nobeyama-45 m | |
| N = 1–0, J = 1/2–1/2, F = 1–0 | 87.446 | 4.2 | 2.61E-07 | S and M | IRAM-30 m + Nobeyama-45 m | |
| N = 3–2, J = 7/2–5/2, F = 3–3 | 261.978 | 25.1 | 1.96E-06 | S | IRAM-30 m | |
| N = 3–2, J = 7/2–5/2, F = 4–3 | 262.004 | 25.1 | 5.32E-05 | S | IRAM-30 m | |
| N = 3–2, J = 7/2–5/2, F = 3–2 | 262.006 | 25.1 | 5.12E-05 | S | IRAM-30 m | |
| N = 3–2, J = 5/2–3/2, F = 3–2 | 262.064 | 25.2 | 4.89E-05 | S | IRAM-30 m | |
| N = 3–2, J = 5/2–3/2, F = 2–1 | 262.067 | 25.2 | 4.47E-05 | S | IRAM-30 m | |
| N= 3–2, J = 5/2–3/2, F = 2–2 | 262.078 | 25.2 | 6.02E-06 | S | IRAM-30 m | |
| N= 3–2, J = 5/2–5/2, F = 3–3 | 262.208 | 25.2 | 3.96E-06 | S | IRAM-30 m | |
| N= 3–2, J = 5/2–5/2, F = 3–2 | 262.236 | 25.2 | 4.04E-07 | S | IRAM-30 m | |
| N= 3–2, J = 5/2–5/2, F = 2–2 | 262.250 | 25.2 | 2.27E-06 | S | IRAM-30 m | |
Notes. The last two columns indicate whether the line is observed in the single-pointing observations (S) or in the OTF map (M), and the used telescope. The spectroscopic data for CCH are from Padovani et al. (2009) through the CDMS (Cologne Database for Molecular Spectroscopy: Müller et al. 2005) and for CH3 OH, from Xu et al. (2008) through the JPL molecular spectroscopy database (Jet Propulsion Laboratory: Pickett et al. 1998) databases. (a) Lines blended, they are not used in the LTE and LVG analysis.
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