Table 5
Observed line ratios.
| Position | V0 (km s-1) | HCO+/HCN | HNC/HCN | HOC+/HCO+ | 12CO/HCO+ | 12CO/HCN | 12CO/13CO |
| (1–0) | (1–0) | (1–0) | (1–0) | (1–0) | (2–1) | ||
|
|
|||||||
| I(2) | ~ − 402 | 1.5 ± 0.5 | <1.09 | <0.59 | 43. ± 8 | 62. ± 18 | 24. ± 5 |
| I-B(1) | ~ − 470 | 1.7 ± 0.4 | <0.35 | <0.21 | 53. ± 7 | 89. ± 18 | 30. ± 3 |
|
|
|||||||
| Position | V0 (km s-1) | HCO+/HCN | 12CO/C18O | 13CO /C18O | 12CO/13CO | ||
| (1–0) | (2–1) | (2–1) | (2–1) | ||||
|
|
|||||||
| I(3) | ~ − 291 | 28.6 ± 9.5 | 1.48 ± 0.51 | 19.4 ± 5.0 | |||
|
|
|||||||
| Stack (red) | 30 ± 12 | 1.73 ± 0.59 | 17.4 ± 4.1 | ||||
| SE stack (red) | 0.87 ± 0.49 | 33 ± 14 | 1.77 ± 0.58 | 18.7 ± 5.1 | |||
Notes. These ratio are computed with the velocity-integrated intensities measured within similar beams for the same component. Numbers in italics correspond to tentative estimates: 12CO(1–0) are derived from 12CO(2–1) with a 0.8 line ratio, stacked 12CO(2–1) and 13CO(2–1) are computed as the sum of the detected lines; and 13CO(2–1) and C18O(2–1) are measured on stacked spectra.
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