Table 4
Averages of line width, velocity shift, and standard deviation of their distributions.
| Species | Line | Velocity | Comment |
| width | shift | ||
| [km s-1] | [km s-1] | ||
|
|
|||
| Low-mass objects | |||
|
|
|||
| CH+ | 6.0 ± 0.8 | −2.0 ± 1.2 | main abs. comp. |
| OH+ | 4.1 ± 4.0 | −3.9 ± 1.0 | main abs. comp. |
| o-H2O+ | 5.5 | −3.5 | one object, abs. |
| C+ | 6.0 ± 0.9 | −5.8 ± 1.2 | main abs. comp. |
|
|
|||
| H3O+ | − | − | not detected |
| HCO+ | 2.5 ± 0.6 | −0.12 ± 0.12 | narrow em. comp. |
| HCO+ | 8.5 ± 3.3 | 0.20 ± 0.86 | broad em. comp. |
| CH | 1.0 ± 0.5 | −0.35 ± 0.23 | narrow em. comp. |
| 9.4 | 0.5 | broad em. comp. | |
|
|
|||
| 13CO(10–9) | 3.9 ± 3.0 | narrow em. comp. | |
|
|
|||
| Intermediate and high-mass objects | |||
|
|
|||
| CH+ | 8.2 ± 4.3 | −0.1 ± 4.9 | main abs. comp. |
| OH+ | 8.7 ± 2.9 | 2.8 ± 7.1 | main abs. comp. |
| o-H2O+ | 9.4 ± 4.1 | −7.6 ± 3.3 | blue abs. comp. |
| C+ | 5.7 ± 1.0 | 1.5 ± 2.5 | main em. comp. |
|
|
|||
| H3O+ | 6.4 ± 2.7 | 1.2 ± 1.2 | em. comp. |
| HCO+ | 4.1 ± 1.1 | −0.01 ± 0.46 | narrow em. comp. |
| HCO+ | 12.9 ± 8.0 | 0.59 ± 1.5 | broad em. comp. |
| CH | 3.9 ± 0.8 | 1.2 ± 2.0 | narrow em. comp. |
|
|
|||
| 13CO(10–9) | 4.3 ± 0.8 | narrow em. comp. | |
Notes. The accuracy of individual line widths and line shifts are better than 1 km s-1. First four lines: blue-shifted molecules in absorption; second group: molecules preferentially in emission and unshifted; bottom line: 13CO (10–9) from San José-García et al. (2013) for comparison.
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