Abstract:
In this work, we present a comprehensive X-ray picture of the interaction between a super star cluster and the interstellar medium. In order to do that, we compare and co...Show MoreMetadata
Abstract:
In this work, we present a comprehensive X-ray picture of the interaction between a super star cluster and the interstellar medium. In order to do that, we compare and combine the X-ray emission from the superwind driven by the cluster with the emission from the wind-blown bubble. Detailed analytical models for the hydrodynamics and X-ray luminosity of fast polytropic superwinds are presented. The superwind X-ray luminosity models are an extension of the results obtained in Paper I. Here, the superwind polytropic character allows us to parametrize a wide variety of effects, for instance, radiative cooling. Additionally, X-ray properties that are valid for all bubble models taking thermal evaporation into account are derived. The final X-ray picture is obtained by calculating analytically the expected surface brightness and weighted temperature of each component. All of our X-ray models have an explicit dependence on metallicity and admit general emissivities as functions of the hydrodynamical variables. We consider a realistic X-ray emissivity that separates the contributions from hydrogen and metals. The paper ends with a comparison of the models with observational data.
Published in: Monthly Notices of the Royal Astronomical Society ( Volume: 394, Issue: 3, April 2009)
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- Index Terms
- X-ray Emission ,
- Cluster Mass ,
- Star Clusters ,
- General Function ,
- Parametrized ,
- Maximum Velocity ,
- Shock Wave ,
- Outer Shell ,
- Hydrodynamic Model ,
- Hypergeometric Function ,
- Separate Contributions ,
- Region C ,
- Large Cloud ,
- Ambient Gas ,
- Cluster Radius ,
- Milky Way ,
- Interstellar Medium ,
- Energy Injection ,
- Constant Emission ,
- Dense Shell ,
- Density Profile ,
- Cluster Core ,
- Spatial Profile ,
- Power-law ,
- Padé Approximation ,
- Strong Magnetic Field ,
- Power Series ,
- Thermal Conductivity ,
- Square Brackets ,
- Trust Region Method
- Author Keywords
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- Index Terms
- X-ray Emission ,
- Cluster Mass ,
- Star Clusters ,
- General Function ,
- Parametrized ,
- Maximum Velocity ,
- Shock Wave ,
- Outer Shell ,
- Hydrodynamic Model ,
- Hypergeometric Function ,
- Separate Contributions ,
- Region C ,
- Large Cloud ,
- Ambient Gas ,
- Cluster Radius ,
- Milky Way ,
- Interstellar Medium ,
- Energy Injection ,
- Constant Emission ,
- Dense Shell ,
- Density Profile ,
- Cluster Core ,
- Spatial Profile ,
- Power-law ,
- Padé Approximation ,
- Strong Magnetic Field ,
- Power Series ,
- Thermal Conductivity ,
- Square Brackets ,
- Trust Region Method
- Author Keywords