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Table 4
Mean gradient of velocities for different bins of log Σgas.
| log Σgas (M⊙ pc−2) | log Σgas,mean | Mean Vshear (km s−1 kpc−1) |
|---|---|---|
| − 0.67 − 0.33 | − 0.41 | 22.72 |
| − 0.33–0.00 | − 0.17 | 28.44 |
| 0.00–0.33 | 0.18 | 33.07 |
| 0.33– 0.67 | 0.48 | 39.17 |
| 0.67–1.00 | 0.74 | 42.67 |
| 1.00– 1.33 | 1.03 | 57.29 |
| 1.33–1.67 | 1.26 | 63.32 |
| 1.67– 2.00 | 1.51 | 74.78 |
| 2.00–2.33 | 1.62 | 81.13 |
| 2.33– 2.67 | 1.79 | 86.34 |
Notes. The values of Σgas used to define these bins are mass-weighted averages whereas Σgas,mean is the usual surface-weighted average. The mean Vshear is mass-weighted. As can be seen, higher Vshear are bound towards higher Σgas. Section 4 gives more details.
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