Table 2
Detected molecules towards HOPS-108 in this work and their derived parameters.
| Molecule | Nlines (a) | Eup | T(b) | Ntot |  |
 |
|---|---|---|---|---|---|---|
| (K) | (K) | (cm−2) | (%) | (%) | ||
| LTE analysis | ||||||
| HCOOCH3 | 28 [83] | 49–366 | 96 |
6.7 × 1017 |
4.8–13.4 | =100 |
| C2H5CN | 6 [11] | 161–285 | 145 |
4.0 × 1015 |
0.03–0.08 | 0.6  |
| CH2DOH | 1 [3] | 113 | 100–150 (c) | (1.5–2.5) × 1017 | 1.0–5.0 | / |
| CH3COCH3 | 3 [10] | 145–150 | 100–150 (c) | (2.9–4.5) × 1016 | 0.2–0.9 | 5.5  |
| NH2CHO | 2 [2] | 79 | 100–150 (c) | (1.8–2.5) × 1015 | 0.01–0.05 | 0.3  |
| CH3OCH3 (d) | 3 [4] | 81–174 | 100–150 (c) | (0.7–2) × 1017 | 0.5–4.0 | 19.8  |
| CH3CHO (d) | 2 [3] | 93 | 100–150 (c) | (1.1–1.6) × 1016 | 0.08–0.32 | 2.0  |
| Non-LTE analysis | ||||||
| CH3OH | 1 [9] | 190–537 | ≥120 | 0.5–1.4 × 1019 | =100 | / |
 |
5[6] | 39–81 | ≥120 | 0.9–2.5 × 1016 | =0.18 | / |
| CH3CN | 2 [3] | 93–100 | 120 |
2.0 × 1016 |
0.1–0.4 | 3.4 |
| 13CH3CN | 3 [5] | 78–142 | 120 |
4.0 × 1014 |
/ | / |
Notes. (a) Number of lines usedin the analysis. The total number of detected transitions (i.e. including blends) is reported in brackets (see text). (b) T is the rotational temperatureTrot for HCOOCH3 and C2H5CN, Tex is that for the rest of molecules analysed using LTE, and Tkin is that for molecules analysed using non-LTE. (c) Adopted range of excitation temperatures (see Sect. 3.4). (d) Line flux measured after subtracting the small contribution from HCOOCH3 and/or C2H5CN (see Sects. 3.3 and 3.4). (e) Abundance ratios of molecules marked as ‘/’ yield no meaningful information.
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