Thermal Instability in Clusters of Galaxies with Conduction

@article{Kim2003ThermalII,
  title={Thermal Instability in Clusters of Galaxies with Conduction},
  author={Woong-Tae Kim and Ramesh Narayan},
  journal={The Astrophysical Journal},
  year={2003},
  volume={596},
  pages={889-902}
}
We consider a model of galaxy clusters in which the hot gas is in hydrostatic equilibrium and maintains energy balance between radiative cooling and heating by thermal conduction. We analyze the thermal stability of the gas using a Lagrangian perturbation analysis. For thermal conductivity at the level of ~20%-40% of Spitzer conductivity, consistent with previous estimates for cluster gas, we find that the growth rate of the most unstable global radial mode is ~6-9 times lower than the growth… 

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