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Related papers: Origin and dynamical evolution of the asteroid bel…

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We have evaluated the rate at which the asteroid belt is losing material, and how it splits between macroscopic bodies and meteoritic dust. The mass loss process is due to the injection of asteroid fragments into unstable dynamical regions,…

Earth and Planetary Astrophysics · Physics 2025-09-26 Julio A. Fernandez

The Solar System's orbital structure is thought to have been sculpted by an episode of dynamical instability among the giant planets. However, the instability trigger and timing have not been clearly established. Hydrodynamical modeling has…

Earth and Planetary Astrophysics · Physics 2022-05-11 Beibei Liu , Sean N. Raymond , Seth A. Jacobson

We propose a scenario for the formation of the Main Belt in which asteroids incorporated icy particles formed in the outer Solar Nebula. We calculate the composition of icy planetesimals formed beyond a heliocentric distance of 5 AU in the…

The practical distinctions between asteroids and comets, viewed as products of accretion on either side of the snow line, are less clear-cut than previously understood. In this chapter, we discuss the numerous solar system populations which…

Earth and Planetary Astrophysics · Physics 2022-12-06 David Jewitt , Henry H. Hsieh

We consider the evolution of a system containing a population of massive planets formed rapidly through a fragmentation process occurring on a scale on the order of 100 au and a lower mass planet that assembles in a disc on a much longer…

Astrophysics · Physics 2009-11-07 Caroline Terquem , John C. B. Papaloizou

Several properties of the Solar System, including the wide radial spacing of the giant planets, can be explained if planets radially migrated by exchanging orbital energy and momentum with outer disk planetesimals. Neptune's…

Earth and Planetary Astrophysics · Physics 2018-10-17 David Nesvorny

It is generally accepted today that our solar system has undergone a phase during which the orbits of the giant planets became very unstable. In recent years, many studies have identified traces of this event and have provided reasonable…

Earth and Planetary Astrophysics · Physics 2016-08-03 Athanasia Toliou , Alessandro Morbidelli , Kleomenis Tsiganis

Planets are formed from collisional growth of small bodies in a protoplanetary disk. Bodies much larger than approximately $1$\,m are mainly controlled by the gravity of the host star and experience weak gas drag; their orbits are mainly…

Earth and Planetary Astrophysics · Physics 2015-05-08 Hiroshi Kobayashi

The evolution of the Solar System can be schematically divided into three different phases: the Solar Nebula, the Primordial Solar System and the Modern Solar System. These three periods were characterized by very different conditions, both…

Earth and Planetary Astrophysics · Physics 2014-01-30 Angioletta Coradini , Diego Turrini , Costanzo Federico , Gianfranco Magni

Understanding the origin and long-term evolution of the Solar System is a fundamental goal of planetary science and astrophysics. This chapter describes our current understanding of the key processes that shaped our planetary system,…

Earth and Planetary Astrophysics · Physics 2024-04-24 Sean N. Raymond

The orbital evolution and stability of planetary systems with interaction from the belts is studied using the standard phase-plane analysis. In addition to the fixed point which corresponds to the Keplerian orbit, there are other fixed…

Astrophysics · Physics 2015-06-24 Ing-Guey Jiang , Li-Chin Yeh

The cumulative effects of weak resonant and secular perturbations by the major planets produce chaotic behavior of asteroids on long timescales. Dynamical chaos is the dominant loss mechanism for asteroids with diameters D > 10 km in the…

Earth and Planetary Astrophysics · Physics 2011-03-07 David A. Minton , Renu Malhotra

The organization of the orbits of most minor bodies in the Solar system seems to follow random patterns, the result of billions of years of chaotic dynamical evolution. Much as heterogeneous orbital behaviour is ubiquitous, dynamically…

Earth and Planetary Astrophysics · Physics 2017-12-08 C. de la Fuente Marcos , R. de la Fuente Marcos

Through its connection with HED meteorites, Vesta is known as one of the first bodies to have accreted and differentiated in the Solar Nebula, predating the formation of Jupiter and surviving the violent evolution of the early Solar System.…

Earth and Planetary Astrophysics · Physics 2014-02-05 D. Turrini , G. Magni , A. Coradini

An asteroid family is typically formed when a larger parent body undergoes a catastrophic collisional disruption, and as such family members are expected to show physical properties that closely trace the composition and mineralogical…

Earth and Planetary Astrophysics · Physics 2016-08-31 Joseph Masiero , Francesca DeMeo , Toshihiro Kasuga , Alex H. Parker

Asteroids and meteorites provide key evidence on the formation of planetesimals in the Solar System. Asteroids are traditionally thought to form in a bottom-up process by coagulation within a population of initially km-scale planetesimals.…

Earth and Planetary Astrophysics · Physics 2016-08-31 Anders Johansen , Emmanuel Jacquet , Jeffrey N. Cuzzi , Alessandro Morbidelli , Matthieu Gounelle

Understanding the origin of comets requires knowledge of how the Solar System formed from a cloud of dust and gas 4.567 Gyr ago. Here, a review is presented of how the remnants of this formation process, meteorites and to a lesser extent…

Earth and Planetary Astrophysics · Physics 2025-06-04 Bernard Marty , Katherine R. Bermingham , Larry R. Nittler , Sean N. Raymond

Polluted white dwarfs are generally accreting terrestrial-like material that may originate from a debris belt like the asteroid belt in the solar system. The fraction of white dwarfs that are polluted drops off significantly for white…

Earth and Planetary Astrophysics · Physics 2020-02-19 Rebecca G. Martin , Mario Livio , Jeremy L. Smallwood , Cheng Chen

Most planetary systems -- including our own -- are born within stellar clusters, where interactions with neighboring stars can help shape the system architecture. This paper develops an orbit-averaged formalism to characterize the cluster's…

Earth and Planetary Astrophysics · Physics 2020-05-20 Konstantin Batygin , Fred C. Adams , Yuri K. Batygin , Erik A. Petigura

The recent years have witnessed a carnival of discoveries in the Outer Solar System. Here we provide evidence from numerical simulations of orbital stability to suggest the possible existence of two long lived belts of primordial…

Astrophysics · Physics 2009-10-31 Wyn Evans , Serge Tabachnik