Polygonal structures in a gaseous disk: Numerical simulations

  title={Polygonal structures in a gaseous disk: Numerical simulations},
  author={Sergey Khoperskov and Alexander V. Khoperskov and Mikhail A. Eremin and M. A. Butenko},
  journal={Astronomy Letters},
The results of numerical simulations of a gaseous disk in the potential of a stellar spiral density wave are presented. The conditions under which straightened spiral arm segments (rows) form in the gas component are studied. These features of the spiral structure were identified in a series of works by A.D. Chernin with coauthors. Gas-dynamic simulations have been performed for a wide range of model parameters: the pitch angle of the spiral pattern, the amplitude of the stellar spiral density… 
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