Dynamic evolution model of isothermal voids and shocks

  title={Dynamic evolution model of isothermal voids and shocks},
  author={Yu-qing Lou and Xiang Zhai},
  journal={Astrophysics and Space Science},
  • Y. Lou, X. Zhai
  • Published 30 May 2009
  • Geology, Physics
  • Astrophysics and Space Science
AbstractWe explore self-similar hydrodynamic evolution of central voids embedded in an isothermal gas of spherical symmetry under the self-gravity. More specifically, we study voids expanding at constant radial speeds in an isothermal gas and construct all types of possible void solutions without or with shocks in surrounding envelopes. We examine properties of void boundaries and outer envelopes. Voids without shocks are all bounded by overdense shells and either inflows or outflows in the… 
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