When H II regions are complicated: considering perturbations from winds, radiation pressure, and other effects
We explore to what extent simple algebraic models can be used to describe H II regions when winds, radiation pressure, gravity, and photon breakout are included. We (a) develop algebraic models to describe the expansion of photoionized H II regions under the influence of gravity and accretion in pow...
Gespeichert in:
| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2020
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| In: |
Monthly notices of the Royal Astronomical Society
Year: 2019, Jahrgang: 492, Heft: 1, Pages: 915-933 |
| ISSN: | 1365-2966 |
| DOI: | 10.1093/mnras/stz3491 |
| Online-Zugang: | Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1093/mnras/stz3491 Verlag, lizenzpflichtig, Volltext: https://academic.oup.com/mnras/article/492/1/915/5673499 
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| Verfasserangaben: | Sam Geen, Eric Pellegrini, Rebekka Bieri and Ralf Klessen |
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| 520 | |a We explore to what extent simple algebraic models can be used to describe H II regions when winds, radiation pressure, gravity, and photon breakout are included. We (a) develop algebraic models to describe the expansion of photoionized H II regions under the influence of gravity and accretion in power-law density fields with ρ ∝ r−w, (b) determine when terms describing winds, radiation pressure, gravity, and photon breakout become significant enough to affect the dynamics of the H ii region where w = 2, and (c) solve these expressions for a set of physically motivated conditions. | ||
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