Table 2
Properties of identified bubbles.
| Bubble | R | vexp | MHI | MH2 | nHI | nH2 | E | Age |
| [pc] | [km s-1] | [M⊙] | [M⊙] | [cm-3] | [cm-3] | [1050 erg] | [Myr] | |
|
|
||||||||
| A | 28 | 7 | 2.4 × 104 | 1.4 × 105 | 13 | 31 | 4.0 | 2.7 |
| B | 32 | 50∗ | 1.2 × 104 | 1.4 × 105 | 3.4 | 19 | 26.0 | 0.3∗ |
| C | 4 | 4 | 360 | 3.4 × 104 | 160 | 7.5 × 103 | >0.028 | 0.5 |
| D | 23 | 5 | 2.4 × 103 | 5.6 × 104 | 1.8 | 20 | 0.19 | 3.6 |
| E | 17 | 6 | 2.1 × 103 | 3.0 × 104 | 3.9 | 26 | 0.21 | 2.3 |
| F | 4 | 4 | 130 | 1.5 × 104 | 23 | 1.3 × 103 | >0.008 | 0.6 |
Notes. R is the mean radius, vexp is the expansion velocity, MHI is the mass of the bubble in HI, MH2 is the molecular mass derived from CO observations, n is the density of the medium into which the bubble was expanding (derived from HI and CO), and E is the energy needed to create the bubble. Bubble B is the special case: its expansion velocity does not come from our measurements and its age is likely to be greater (see Sect. 3.1.1).
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