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Table 1
Comparison of the masses and energetics of the protrusion with the Veil shell.
| Veil shell(α) | Protrusion | |
|---|---|---|
| Size (pc) | 2.7 | 1.3(b) |
| Thickness (pc) | 0.5 | 0.1 |
| Density (×103 cm−3) | 1−10 | 0.1−1 |
| Ekin (1046 erg) | 250 | 7 |
| Momentum (M0 km s−1) | 20 000 | 360−540 |
| Expansion velocity (km s−1) | 13 | 12 |
| Mass of neutral gas (M0) | 1500 | 30−45 |
Notes. (a)From Pabst et al. (2020). (b)The protrusion size is measured from the wall of the Veil shell to the outer shell in the northwestern direction.
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