Short Period Comets: Primordial Bodies or Collisional Fragments?

Details Short Period Comets: Primordial Bodies or Collisional Fragments? Short Period Comets: Primordial Bodies or Collisional Fragments?

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27..293d&link_type=abstract

Lunar and Planetary Science, volume 27, page 293

Physics

2

Collisional Evolution, Comets, Kuiper Belt Objects

Scientific paper

We challenge the common assumption that most comets represent "primitive," unprocessed samples of the planetesimal population formed in the outer part of the primordial solar nebula. There are strong reasons for believing that short period comets come from the transneptunian Kuiper belt, which currently contains a population of objects ~10^3 times that of the main asteroid belt, spread over a volume ~10^3 larger and with relative speeds ~10 times lower. Stern demonstrated that collisions among Kuiper belt objects (KBO) are significantly frequent. Therefore, like for the asteroids, the distribution of KBO has been affected by mutual impacts over solar system history.

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