Table 7
Column densities, excitation temperatures, FWHM, and vpeak derived at the peak positions of the N- and S- bearing species peak (position 3 in Fig. 12).
| Molecule | Column density | Tex | FWHM | vpeak | Peak position (a) |
|---|---|---|---|---|---|
| (cm−2) | (K) | (km s−1) | (km s−1) | ||
| COMs and O-bearing species | |||||
| CH3OH (b) | 5.7 (1.5) × 1018 | 100 (25) | 5.0 | 9.5 | 2 |
| 13CH3OH | 7.4(2.0) × 1016 | 100 (25) | 5.0 | 9.5 | 1/2 |
| CH3 18OH (c) | <1.7 × 1016 | 100 | 5.0 | 9.5 | – |
| CH2DOH (c) | <2.3 × 1016 | 100 | 5.0 | 9.5 | – |
| C2H5OH | 5.5(2.0) × 1016 | 140 (60) | 5.5 | 10.5 | 1 |
| CH3OCHO | 9.6(2.0) × 1016 | 110 (20) | 5.0 | 9.0 | 1 |
| CH3OCH3 | 1.5(0.2) × 1017 | 100 (20) | 4.5 | 9.5 | 1 |
| H2CO (b) | 4.3(1.5) × 1017 | 150 (40) | 8.5 | 9.5 | 1/2 |
| H2 13CO | 5.6(2.0) × 1015 | 150 (40) | 8.5 | 9.5 | 1 |
| t-HCOOH | 4.8(0.5) × 1016 | 170 (50) | 7.0 | 11.0 | 3 |
| c-HCOOH | <4.0 × 1015 | 170 (50) | 7.0 | 11.0 | 3 |
| HDO (d) | 8.9(2.0) × 1016 | 100 (25) | 4.0 | 11.0 | – |
| S-bearing species | |||||
| H2CS | 2.4(0.5) × 1016 | 140 (50) | 5.5 | 9.5 | 1 |
| 33SO (e) | 7.0(2.0) × 1015 | 130 (40) | 6.5 | 10.0 | 3 |
| SO2 (b) | 1.1(0.2) × 1018 | 130 (40) | 6.5 | 10.0 | 3 |
| 33SO2 (c) | <1.2 × 1016 | 130 | 6.5 | 10.0 | – |
| 34SO2 | 4.8(1.0) × 1016 | 130 (40) | 6.5 | 10.0 | 3 |
| OCS (a) | 1.4(0.4) × 1017 | 150 (50) | 5.0 | 10.0 | 2 |
| OC34S | 6.5(2.0) × 1015 | 170 (50) | 5.0 | 10.0 | 1 |
| N-bearing species | |||||
| HNCO | 5.9(1.0) × 1016 | 160 (40) | 6.5 | 10.5 | 3 |
| HC3N | 4.0(1.0) × 1015 | 240 (40) | 7.0 | 10.0 | 3 |
| CH3CN, v8=1 (f) | 6.0(2.0) × 1016 | 140 (10) | 7.0 | 10.5 | 2/3 |
| 13CH3CN (c) | <1.0 × 1015 | 140 | 7.0 | 10.5 | – |
Notes. Values are derived from synthetic spectrum fitting with CASSIS, with the assumption of LTE. (a)Positions of peak molecular emission are as represented in Fig. 12. (b)Column densities for optically thick lines derived using ISM ratios from Wilson & Rood (1994). (c)Upper limits were determined by setting Tex, FWHM, and vpeak, equal to that of a detected isotopologue. (d)To estimate a column density for HDO, the excitation temperature of methanol was assumed. (e)Both SO and 34SO had optically thick lines, so only the column density of 33SO could be derived, using Tex of 34SO2. (f)CH3CN, v8 =1, was used for the model fit of CH3CN because it is optically thick, and 13CH3CN was not detected.
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