The edge of the Edgeworth-Kuiper Belt: Stellar encounter, trans-plutonian planet or outer limit of the primordial solar nebula?

M. D. Melita*, J. Larwood, S. Collander-Brown, A. Fitzsimmons, I. P. Williams, A. Brunini

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

We study two different scenarios in which an external perturber can truncate the trans-Neptunian cometary population and we give plausibility arguments regarding both of them. First we study the perturbations induced in the Edgeworth-Kuiper Belt (EKB) by a stellar encounter. We also investigate the effects of a planetoid with semimajor axis at about 60 AU orbiting embedded in the primordial EKB. Arguments regarding the origin of such an object in the framework of our current understanding of the origin of the outer Solar System are given, as well as ranges for the magnitude and proper motion of the this hypothetical object. In this case, the mass and orbital orbital parameters of the planetoid that results in an EKB distribution as observed would compromise the stability of the Plutinos. Our results suggest that for both scenarios to reassemble the present observed distribution the edge of the EKB should roughly coincide with outer limit of the solid phase of the primordial Solar Nebular is discussed.

Original languageEnglish
Title of host publicationEuropean Space Agency Special Publication Issue 500
Pages305-308
Number of pages4
Edition500
Publication statusPublished - 01 Jul 2002

Publication series

NameEuropean Space Agency, (Special Publication) ESA SP
ISSN (Print)0379-6566

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

Fingerprint Dive into the research topics of 'The edge of the Edgeworth-Kuiper Belt: Stellar encounter, trans-plutonian planet or outer limit of the primordial solar nebula?'. Together they form a unique fingerprint.

Cite this