A Flared, Orbiting, Dusty Disk around HD 233517

  title={A Flared, Orbiting, Dusty Disk around HD 233517},
  author={M. Jura},
  journal={The Astrophysical Journal},
  pages={1032 - 1035}
  • M. Jura
  • Published 13 September 2002
  • Physics, Geology
  • The Astrophysical Journal
We find that the infrared excess around HD 233517, a first-ascent red giant, can be explained naturally if the star possesses an orbiting, flared, dusty disk. We estimate that the outer radius of this disk is ~45 AU and the total mass within the disk is ~0.01 M☉. We speculate that this disk is the result of the engulfment of a low-mass companion star that occurred when HD 233517 became a red giant. 


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