Abstract
HII regions are volumes of gas surrounding high-mass stars that are ionized and heated by the stellar ultraviolet radiation. This ionization and heating significantly raises the thermal pressure of the gas, which is the principal driver of the dynamics of all but the very smallest and very largest HII regions.
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Henney, W. (2007). How to Move Ionized Gas: An Introduction to the Dynamics of HII Regions. In: HARTQUIST, T., PITTARD, J., FALLE, S. (eds) Diffuse Matter from Star Forming Regions to Active Galaxies. Astrophysics and Space Science Proceedings. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-5425-9_6
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DOI: https://doi.org/10.1007/978-1-4020-5425-9_6
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