Table 4
Parameters of the Gaussian decompositions of the OH 1835 GHz and CO (16–15) lines.
| Double-Gaussian decomposition | Triple-Gaussian decomposition | |||||||||||||
| OH 1835 GHz | CO (16–15) | OH 1835 GHz | CO (16–15) | |||||||||||
| Narrow | Broad | Narrow | Broad | Blue | Ambient | Red | Blue | Ambient | Red | |||||
|
|
||||||||||||||
| Δν (km s-1) | 8.4 | 50.4 | 7.1 | 36.2 | 53.6 | 7.8 | 15.2 | 48.1 | 7.3 | 5.3 | ||||
| νpeak (km s-1) | –10.3 | –11.8 | –10.9 | –12.7 | –14.7 | –10.6 | –2.6 | –17.2 | –11.0 | –3.0 | ||||
| Tpeak (K) | 2.3 | 0.9 | 4.9 | 1.2 | 0.7 | 2.4 | 0.3 | 0.8 | 5.3 | 0.7 | ||||
|
|
||||||||||||||
| rms base (K) | 0.17 | 0.19 | 0.16 | 0.19 | ||||||||||
| rms signal (K) | 0.19 | 0.21 | 0.18 | 0.21 | ||||||||||
Notes. “rms base” and “rms line” denote the rms values associated with the residual. When fitting the lines with a double Gaussian, forcing the νpeak of one or both of the components to the νlsr of the cloud leads to no more than ~12% variations in the rms values.
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