Keywords
HII regions
hydrodynamics
stars: winds
outflows
hydrodynamics
stars: winds
outflows
How to Cite
The HII Regions and Bow Shocks Around Runaway O Stars. (2022). Revista Mexicana De Astronomía Y Astrofísica, 58(2), 395-402. https://doi.org/10.22201/ia.01851101p.2022.58.02.18
Abstract
We present a model for the HII region and stellar wind bow shock formed by runaway O stars passing through the Galactic disk. We develop a quasi-analytic approach in which the absorption of stellar ionizing photons by the bow shock is considered. With these models we study the transition between a detached ionization front (leading the bow shock) and an ionization front trapped by the stellar wind bow shock. We find that for an O7 star one needs to have a stellar velocity of only a few km/s and an environmental density > 105 cm−3.Similar Articles
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