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Asteroid (21) Lutetia as a remnant of Earth’s precursor planetesimals

Authors
  • P, Vernazza
  • P, Lamy
  • O, Groussin
  • T, Hiroi
  • L, Jorda
  • P L, King
  • Mrm, Izawa
  • Franck Marchis
  • M, Birlan
  • R, Brunetto
Type
Published Article
Journal
Icarus
Publisher
Elsevier
Publication Date
Dec 31, 2011
Volume
216
Issue
2
Pages
650–659
Source
SETI Institute
License
Unknown

Abstract

Isotopic and chemical compositions of meteorites, coupled with dynamical simulations, suggest that the main belt of asteroids between Mars and Jupiter contains objects formed in situ as well as a population of interlopers. These interlopers are predicted to include the building blocks of the terrestrial planets as well as objects that formed beyond Neptune (Bottke et al. 2006, Levison et al. 2009, Walsh et al. 2011). Here we report that the main belt asteroid (21) Lutetia–encountered by the Rosetta spacecraft in July 2010–has spectral (...

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