Superbubble evolution including the star-forming clouds: Is it possible to reconcile LMC observations with model predictions?

Details Superbubble evolution including the star-forming clouds: Is it possible to reconcile LMC observations with model predictions? Superbubble evolution including the star-forming clouds: Is it possible to reconcile LMC observations with model predictions?

1999-05-13

arxiv.org/abs/astro-ph/9905167v1

Astronomy and Astrophysics

Astrophysics

25 pages, 7 figures, accepted to ApJ (September, 1999 issue)

Scientific paper

10.1086/307694

Here we present a possible solution to the apparent discrepancy between the observed properties of LMC bubbles and the standard, constant density bubble model. A two-dimensional model of a wind-driven bubble expanding from a flattened giant molecular cloud is examined. We conclude that the expansion velocities derived from spherically symmetric models are not always applicable to elongated young bubbles seen almost face-on due to the LMC orientation. In addition, an observational test to differentiate between spherical and elongated bubbles seen face-on is discussed.

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