Table 2
Brightness temperatures and line widths in the Eye of the Medusa and the western arm.
| Line | Eye of the Medusa | Western arm | ||||
|---|---|---|---|---|---|---|
| ∫ TB dva,b | peak TBa,c | FWHMd | ∫ TB dva,b | peak TBa,c | FWHMd | |
| [K km s−1 pc2] | [K] | [km s−1] | [K km s−1 pc2] | [K] | [km s−1] | |
| CO3−2 | 892.3 ± 6.3 | 13.82 ± 0.42 | 74.7 ± 3.1 | 504.4 ± 3.3 | 7.48 ± 0.27 | 66.2 ± 2.7 |
| CO2−1 | 356.8 ± 0.6 | 3.74 ± 0.08 | 88.8 ± 2.0 | 208.4 ± 0.4 | 2.01 ± 0.06 | 91.7 ± 2.9 |
| HCO+ 1−0 | 45.3 ± 0.5 | 0.80 ± 0.03 | 63.7 ± 3.3 | 35.9 ± 0.3 | 0.62 ± 0.03 | 55.7 ± 2.9 |
| HCN 1−0 | 36.4 ± 0.2 | 0.53 ± 0.03 | 59.6 ± 4.2 | 23.7 ± 0.3 | 0.51 ± 0.04 | 63.6 ± 8.6 |
Notes. (a) The brightness temperatures TB were determined from resolution-matched (1′′) data cubes inside the same polygons of 1′′ size. (b) ∫ TB dv is the brightness temperature integrated over the 1′′ polygon. (c) peak TB is the peak brightness temperature of the spectrum integrated over the 1′′ polygon. (d) Obtained from a single Gaussian fit to the line.
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