Detectable close-in planets around white dwarfs through late unpacking

  title={Detectable close-in planets around white dwarfs through late unpacking},
  author={Dimitri Veras and Boris T. Gaensicke},
  journal={Monthly Notices of the Royal Astronomical Society},
  • D. Veras, B. Gaensicke
  • Published 21 November 2014
  • Physics, Geology
  • Monthly Notices of the Royal Astronomical Society
Although 25%-50% of white dwarfs (WDs) display evidence for remnant planetary systems, their orbital architectures and overall sizes remain unknown. Vibrant close-in (~1 Solar radius) circumstellar activity is detected at WDs spanning many Gyrs in age, suggestive of planets further away. Here we demonstrate how systems with 4 and 10 closely-packed planets that remain stable and ordered on the main sequence can become unpacked when the star evolves into a WD and experience pervasive inward… 

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