• Corpus ID: 17948166

HD 161796 (IRAS 17436+5003)

  title={HD 161796 (IRAS 17436+5003)},
  author={Toshiya Ueta},
  • T. Ueta
  • Published 2 October 2003
  • Physics, Geology
Past imaging observations of a post-AGB star, HD 161796, have probed different parts of its circumstellar shell which correspond to different epochs of the star's AGB mass loss history. While the overall structure of the shell can be described by an axisymmetric model consisting of three layers of characteristic structure, the mass distribution in the shell appears to rotate its axis of symmetry in a continuous manner. It is thus interesting to observe the halo region of the shell using from… 
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