Properties of identified bubbles.
|[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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