DISINTEGRATING ASTEROID P/2013 R3

@article{Jewitt2014DISINTEGRATINGAP,
  title={DISINTEGRATING ASTEROID P/2013 R3},
  author={David C. Jewitt and Jessica Agarwal and Jing Li and H. Weaver and Max J. Mutchler and Stephen M. Larson},
  journal={The Astrophysical Journal Letters},
  year={2014},
  volume={784}
}
Splitting of the nuclei of comets into multiple components has been frequently observed but, to date, no main-belt asteroid has been observed to break up. Using the Hubble Space Telescope, we find that main-belt asteroid P/2013 R3 consists of 10 or more distinct components, the largest up to 200 m in radius (assumed geometric albedo of 0.05) each of which produces a coma and comet-like dust tail. A diffuse debris cloud with total mass ∼2 × 108 kg further envelopes the entire system. The… 

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