Numerical models for the dust in RCW 120
A. Rodr\'iguez-Gonz\'alez, Z. Meliani, M. S\'anchez-Cruces, P.R., Rivera-Ortiz, A. Castellanos-Ram\'irez
TL;DR
This paper develops numerical models to study the dust distribution and dynamics within the interstellar bubble RCW 120, driven by stellar wind and radiation from a runaway star, focusing on the dust-ISM boundary.
Contribution
The paper introduces detailed numerical simulations of dust behavior in RCW 120, highlighting the interaction between stellar wind, radiation, and dust in the bubble's structure.
Findings
Dust distribution correlates with the bubble's morphology.
Stellar wind and radiation significantly influence dust dynamics.
Models match observed infrared dust emission features.
Abstract
The interstellar bubble RCW 120 seen around a type O runaway star is driven by the stellar wind and the ionising radiation emitted by the star. The boundary between the stellar wind and interstellar medium (ISM) is associated with the arc-shaped mid-infrared dust emission around the star within the HII region.
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