期刊
ANNUAL REVIEW OF EARTH AND PLANETARY SCIENCES
卷 37, 期 -, 页码 413-448出版社
ANNUAL REVIEWS
DOI: 10.1146/annurev.earth.36.031207.124214
关键词
planet formation; planetesimals; small bodies; accretion; NEOs
资金
- NASA's Planetary Geology and Geophysics Program
- University of California, Santa Cruz
Asteroids are what is left of the precursors to the terrestrial planets. They are stunning ill 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 car) he fully appreciated, for to paraphrase Tolstoy, accreted planets are all alike; every unaccreted Planet is unaccreted in its own way.
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