Solution to the debris disc mass problem: planetesimals are born small?

  title={Solution to the debris disc mass problem: planetesimals are born small?},
  author={Alexander V. Krivov and Mark C. Wyatt},
  journal={Monthly Notices of the Royal Astronomical Society},
  • A. KrivovM. Wyatt
  • Published 17 August 2020
  • Geology, Physics
  • Monthly Notices of the Royal Astronomical Society
Debris belts on the periphery of planetary systems, encompassing the region occupied by planetary orbits, are massive analogues of the Solar system's Kuiper belt. They are detected by thermal emission of dust released in collisions amongst directly unobservable larger bodies that carry most of the debris disc mass. We estimate the total mass of the discs by extrapolating up the mass of emitting dust with the help of collisional cascade models. The resulting mass of bright debris discs appears… 

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