The frequency of planetary debris around young white dwarfs

@article{Koester2014TheFO,
  title={The frequency of planetary debris around young white dwarfs},
  author={Detlev Koester and Boris T. Gansicke and Jay Farihi},
  journal={Astronomy and Astrophysics},
  year={2014},
  volume={566}
}
Context. Heavy metals in the atmospheres of white dwarfs are thought in many cases to be accreted from a circumstellar debris disk, which was formed by the tidal disruption of a rocky planetary body within the Roche radius of the star. The abundance analysis of photospheric elements and conclusions about the chemical composition of the accreted matter are a new and promising method of studying the composition of extrasolar planetary systems. However, ground-based searches for metal-polluted… 

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