Book contents
- Vesta and Ceres: Insights from the Dawn Mission for the Origin of the Solar System
- Cambridge Planetary Science
- Vesta and Ceres
- Copyright page
- Contents
- Contributors
- Preface
- Part I Remote Observations and Exploration of Main Belt Asteroids
- Part II Key Results from Dawn’s Exploration of Vesta and Ceres
- Part III Implications for the Formation and Evolution of the Solar System
- 13 Formation of Main Belt Asteroids
- 14 Isotopic Constraints on the Formation of the Main Belt
- 15 Origin and Dynamical Evolution of the Asteroid Belt
- 16 Collisional Evolution of the Main Belt as Recorded by Vesta
- 17 Epilogue
- Index
- Plate Section (PDF Only)
- References
13 - Formation of Main Belt Asteroids
from Part III - Implications for the Formation and Evolution of the Solar System
Published online by Cambridge University Press: 01 April 2022
- Vesta and Ceres: Insights from the Dawn Mission for the Origin of the Solar System
- Cambridge Planetary Science
- Vesta and Ceres
- Copyright page
- Contents
- Contributors
- Preface
- Part I Remote Observations and Exploration of Main Belt Asteroids
- Part II Key Results from Dawn’s Exploration of Vesta and Ceres
- Part III Implications for the Formation and Evolution of the Solar System
- 13 Formation of Main Belt Asteroids
- 14 Isotopic Constraints on the Formation of the Main Belt
- 15 Origin and Dynamical Evolution of the Asteroid Belt
- 16 Collisional Evolution of the Main Belt as Recorded by Vesta
- 17 Epilogue
- Index
- Plate Section (PDF Only)
- References
Summary
From the viewpoint of planet formation in the Solar System, Main Belt asteroids are the remnants of the so-called planetesimal population, the building bricks of planets that formed ubiquitously all over the Solar Nebula. Over the last years evidence has grown that planetesimals formed big from the gravitational collapse of a local accumulation of mm–cm sized so-called pebbles, rather than small, as models of collisional coagulation would suggest. The precise size distribution of original planetesimals remains a central question in planetology. An asteroid (and other small bodies) could be a fragment of a larger parent body or it could be an original planetesimal. Here, we outline observational and theoretical constraints on the formation of MBAs. We discuss the current state of research on the size–frequency distribution, the ages of asteroids, and the implications on the formation of asteroids. We review planetesimal formation theory, specifically focusing on the initial sizes of primordial planetesimals.
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- Vesta and CeresInsights from the Dawn Mission for the Origin of the Solar System, pp. 199 - 211Publisher: Cambridge University PressPrint publication year: 2022
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