Winds in Star Clusters Drive Kolmogorov Turbulence. (arXiv:2006.14626v1 [astro-ph.GA])
<a href="http://arxiv.org/find/astro-ph/1/au:+Gallegos_Garcia_M/0/1/0/all/0/1">Monica Gallegos-Garcia</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Burkhart_B/0/1/0/all/0/1">Blakesley Burkhart</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rosen_A/0/1/0/all/0/1">Anna Rosen</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Naiman_J/0/1/0/all/0/1">Jill P. Naiman</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ramirez_Ruiz_E/0/1/0/all/0/1">Enrico Ramirez-Ruiz</a>
Intermediate and massive stars drive fast and powerful isotropic winds that
interact with the winds of nearby stars in star clusters and the surrounding
interstellar medium (ISM). Wind-ISM collisions generate astrospheres around
these stars that contain hot $Tsim 10^7$ K gas that adiabatically expands. As
individual bubbles expand and collide they become unstable, potentially driving
turbulence in star clusters. In this paper we use hydrodynamic simulations to
model a densely populated young star cluster within a homogeneous cloud to
study stellar wind collisions with the surrounding ISM. We model a
mass-segregated cluster of 20 B-type young main sequence stars with masses
ranging from 3–17 $M_{odot}$. We evolve the winds for $sim$11 kyrs and show
that wind-ISM collisions and over-lapping wind-blown bubbles around B-stars
mixes the hot gas and ISM material generating Kolmogorov-like turbulence on
small scales early in its evolution. We discuss how turbulence driven by
stellar winds may impact the subsequent generation of star formation in the
cluster
Intermediate and massive stars drive fast and powerful isotropic winds that
interact with the winds of nearby stars in star clusters and the surrounding
interstellar medium (ISM). Wind-ISM collisions generate astrospheres around
these stars that contain hot $Tsim 10^7$ K gas that adiabatically expands. As
individual bubbles expand and collide they become unstable, potentially driving
turbulence in star clusters. In this paper we use hydrodynamic simulations to
model a densely populated young star cluster within a homogeneous cloud to
study stellar wind collisions with the surrounding ISM. We model a
mass-segregated cluster of 20 B-type young main sequence stars with masses
ranging from 3–17 $M_{odot}$. We evolve the winds for $sim$11 kyrs and show
that wind-ISM collisions and over-lapping wind-blown bubbles around B-stars
mixes the hot gas and ISM material generating Kolmogorov-like turbulence on
small scales early in its evolution. We discuss how turbulence driven by
stellar winds may impact the subsequent generation of star formation in the
cluster
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