The Size Distribution of Superbubbles in the Interstellar Medium

Details The Size Distribution of Superbubbles in the Interstellar Medium The Size Distribution of Superbubbles in the Interstellar Medium

1998-03-06

arxiv.org/abs/astro-ph/9803069v1

Astronomy and Astrophysics

Astrophysics

8 pages, 2 postscript figures, uses epsf.sty. To appear in "Interstellar Turbulence", J. Franco and A. Carraminana, eds., Camb

Scientific paper

We use the standard, adiabatic shell evolution to predict the size distribution N(R) for populations of SN-driven superbubbles in a uniform ISM. We derive N(R) for simple cases of superbubble creation rate and mechanical luminosity function. We then compare our predictions for N(R) with the largely complete HI hole catalogue for the SMC, with a view toward the global structure of the ISM in that galaxy. We also present a preliminary derivation for N(v), the distribution of shell expansion velocities.

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