Table 1
Characteristics of the different data sets used in this study.
| Data | ν | Angular resolution | Spectral channel width | Noise | Reference |
| [GHz] | [km s-1] | ||||
|
|
|||||
| EBHIS | 1.42 | 10.8′ | 1.29 | 90 mK | (1) |
| WSRT aIVC | 1.42 | 75.1″ × 23.0″ | 1.03 | 1.1 mJy (beam)-1 | (3) |
| WSRT mIVC | 1.42 | 49.1″ × 17.9″ | 1.03 | 1.4 mJy (beam)-1 | (3) |
| Planck τ 353 | 353 | 5.27′ | – | – | (2) |
| IRAM FTS 12CO(1 → 0) | 115.27 | 23.0′′ | 0.53 | 0.20 K | (3) |
| IRAM FTS 13CO(1 → 0) | 110.20 | 24.1′′ | 0.53 | 0.10 K | (3) |
| IRAM VESPA 13CO(1 → 0) | 110.20 | 24.1′′ | 0.13 | 0.15 K | (3) |
Notes. For IRAM and Planck, the data is gridded to FITS-maps with a Gaussian kernel, degrading the spatial resolution slightly. The angular resolution is that of the final gridded maps.
Reference. (1) Winkel et al. (2016), Kerp et al. (2011), Winkel et al. (2010); (2) Planck Collaboration XI (2014); (3) this work.
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