New Paradigms for Asteroid Formation

  title={New Paradigms for Asteroid Formation},
  author={A. Johansen and E. Jacquet and J. Cuzzi and A. Morbidelli and M. Gounelle},
  journal={arXiv: Earth and Planetary Astrophysics},
Asteroids and meteorites provide key evidence on the formation of planetesimals in the Solar System. Asteroids are traditionally thought to form in a bottom-up process by coagulation within a population of initially km-scale planetesimals. However, new models challenge this idea by demonstrating that asteroids of sizes from 100 to 1000 km can form directly from the gravitational collapse of small particles which have organised themselves in dense filaments and clusters in the turbulent gas… Expand

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