Warm dust in the terrestrial planet zone of a Sun-like Pleiades star: Collisions between planetary embryos?

@article{Rhee2008WarmDI,
  title={Warm dust in the terrestrial planet zone of a Sun-like Pleiades star: Collisions between planetary embryos?},
  author={Joseph Hakjin Rhee and Inseok Song and Ben Zuckerman},
  journal={The Astrophysical Journal},
  year={2008},
  volume={675},
  pages={777-783}
}
Only a few solar-type main-sequence stars are known to be orbited by warm dust particles; the most extreme is the G0 field star BD +20 307 that emits ~4% of its energy at mid-infrared wavelengths. We report the identification of a similarly dusty star HD 23514, an F6-type member of the Pleiades. A strong mid-IR silicate emission feature indicates the presence of small warm dust particles, but with the primary flux density peak at the nonstandard wavelength of ~9 μm. The existence of so much… 

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