Comet-like mineralogy of olivine crystals in an extrasolar proto-Kuiper belt

  title={Comet-like mineralogy of olivine crystals in an extrasolar proto-Kuiper belt},
  author={Bernard L. de Vries and Bram Acke and Joris Blommaert and Christoffel Waelkens and L. B. F. M. Waters and Bart K. Vandenbussche and Michiel Min and G{\"o}ran Olofsson and Carsten Dominik and Leen Decin and Michael J. Barlow and A. Brandeker and James Di Francesco and Adrian Glauser and Jane Greaves and Paul Michael Harvey and Wayne S. Holland and R. Ivison and Rene' Liseau and E. E. Pantin and G{\"o}ran Pilbratt and Pierre Royer and Bruce Sibthorpe},
Some planetary systems harbour debris disks containing planetesimals such as asteroids and comets. Collisions between such bodies produce small dust particles, the spectral features of which reveal their composition and, hence, that of their parent bodies. A measurement of the composition of olivine crystals (Mg2−2xFe2xSiO4) has been done for the protoplanetary disk HD 100546 (refs 3, 4) and for olivine crystals in the warm inner parts of planetary systems. The latter compares well with the… Expand
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