Growth and evolution of asteroids

Erik Asphaug

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

Asteroids are what is left of the precursors to the terrestrial planets. They are stunning in their diversity, ranging from charcoal-black worlds the size of a hilltop, spinning like a carnival ride, to dog-bone-shaped metallic remnants of some cataclysmically disrupted planetary core, to worlds as stately as Ceres and Vesta (and fragments thereof), to garden-variety fractured and blocky nuggets that dominate near-Earth space. Asteroid belts are common around Sun-like stars. When properly seen as unaccreted residues, as scraps on the floor of the planetary bakery, the diversity of asteroids can be fully appreciated, for to paraphrase Tolstoy, accreted planets are all alike; every unaccreted planet is unaccreted in its own way.

Original languageEnglish (US)
Pages (from-to)413-448
Number of pages36
JournalAnnual Review of Earth and Planetary Sciences
Volume37
DOIs
StatePublished - May 2009
Externally publishedYes

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asteroids
asteroid
planets
planet
planetary cores
scrap
asteroid belts
charcoal
terrestrial planets
dogs
core (planetary)
metal spinning
bones
sun
fragments
stars
garden
bone
world

Keywords

  • Accretion
  • NEOs
  • Planet formation
  • Planetesimals
  • Small bodies

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Growth and evolution of asteroids. / Asphaug, Erik.

In: Annual Review of Earth and Planetary Sciences, Vol. 37, 05.2009, p. 413-448.

Research output: Contribution to journalArticle

Asphaug, Erik. / Growth and evolution of asteroids. In: Annual Review of Earth and Planetary Sciences. 2009 ; Vol. 37. pp. 413-448.
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