Self-similar shocks in polytropic gas flows around star-forming regions

  title={Self-similar shocks in polytropic gas flows around star-forming regions},
  author={Yu-qing Lou and Yang Gao},
  journal={Monthly Notices of the Royal Astronomical Society},
  • Y. Lou, Yang Gao
  • Published 28 September 2006
  • Physics
  • Monthly Notices of the Royal Astronomical Society
Self-similar shock solutions in spherically symmetric polytropic gas flows are constructed and analysed in contexts of protostar formation processes. Among other possible solutions, we model a similarity shock across the sonic critical curve with an inner free-fall core collapse and a simultaneous outer expansion of the extended envelope; the separation or stagnation surface between these two flow zones travels outwards in a self-similar manner at a variable speed. One readily obtains accretion… 

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