Thar she blows! How to inflate a wind-blown bubble. (arXiv:2107.14673v1 [astro-ph.GA])
<a href="http://arxiv.org/find/astro-ph/1/au:+Pittard_J/0/1/0/all/0/1">J. M. Pittard</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wareing_C/0/1/0/all/0/1">C. J. Wareing</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kupilas_M/0/1/0/all/0/1">M. M. Kupilas</a>
Stellar winds are one of several ways that massive stars can affect the star
formation process on local and galactic scales. In this paper we investigate
the resolution requirements to inflate a stellar wind bubble in an external
medium. We find that the radius of the wind injection region, $r_{rm inj}$,
must be below a maximum value, $r_{rm inj,max}$, in order for a bubble to be
produced, but must be significantly below this value if the bubble is to be
modelled correctly. Our work has significance for the amount of radial momentum
that a wind-blown bubble can impart to the ambient medium in simulations, and
thus on the relative importance of stellar wind feedback.
Stellar winds are one of several ways that massive stars can affect the star
formation process on local and galactic scales. In this paper we investigate
the resolution requirements to inflate a stellar wind bubble in an external
medium. We find that the radius of the wind injection region, $r_{rm inj}$,
must be below a maximum value, $r_{rm inj,max}$, in order for a bubble to be
produced, but must be significantly below this value if the bubble is to be
modelled correctly. Our work has significance for the amount of radial momentum
that a wind-blown bubble can impart to the ambient medium in simulations, and
thus on the relative importance of stellar wind feedback.
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