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We argue that taxonomical concept development is vital for planetary science as in all branches of science, but its importance has been obscured by unique historical developments. The literature shows that the concept of planet developed by…

Our understanding of planet formation has been rapidly evolving in recent years. The classical planet formation theory, developed when the only known planetary system was our own Solar System, has been revised to account for the observed…

The classification of the minor bodies of the Solar System based on observables has been continuously developed and iterated over the past 40 years. While prior iterations followed either the availability of large observational campaigns or…

Earth and Planetary Astrophysics · Physics 2022-09-21 Max Mahlke , Benoit Carry , Pierre-Alexandre Mattei

The asteroid belt is a unique source of information on some of the most important questions facing solar system science. These questions include the sizes, numbers, types and orbital distributions of the planetesimals that formed the…

Earth and Planetary Astrophysics · Physics 2024-11-20 Stanley F. Dermott , Dan Li , Apostolos A. Christou

Asteroids are leftover pieces from the era of planet formation that help us understand conditions in the early Solar System. Unlike larger planetary bodies that were subject to global thermal modification during and subsequent to their…

Earth and Planetary Astrophysics · Physics 2009-06-25 Kevin J. Walsh , Patrick Michel , Derek C. Richardson

A considerable amount of information regarding the processes that occurred during the accretion of the early planetesimals is still present among the small bodies of our solar system. A review of our current knowledge of the density of…

Earth and Planetary Astrophysics · Physics 2015-06-04 Benoit Carry

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

Collisions are one of the key processes shaping planetary systems. Asteroid families are outcomes of such collisions still identifiable across our solar system. The families provide a unique view of catastrophic disruption phenomena and…

Earth and Planetary Astrophysics · Physics 2022-07-25 Bojan Novakovic , David Vokrouhlicky , Federica Spoto , David Nesvorny

The distribution of asteroids across the Main Belt has been studied for decades to understand the compositional distribution and what that tells us about the formation and evolution of our solar system. All-sky surveys now provide orders of…

Earth and Planetary Astrophysics · Physics 2015-06-16 Francesca DeMeo , Benoit Carry

Satellites of asteroids have been discovered in nearly every known small body population, and a remarkable aspect of the known satellites is the diversity of their properties. They tell a story of vast differences in formation and evolution…

Earth and Planetary Astrophysics · Physics 2016-08-31 Kevin J. Walsh , Seth A. Jacobson

The problem of origin and age of asteroid families is studied very intensively. First of all youngest families are interesting due to possibility of the reconstruction their collisional history. But in oldest families present objects with…

Earth and Planetary Astrophysics · Physics 2015-09-16 Alexey Rosaev

The asteroid belt is the leftover of the original planetesimal population in the inner solar system. However, currently the asteroids have orbits with all possible values of eccentricities and inclinations compatible with long-term…

Earth and Planetary Astrophysics · Physics 2016-08-31 Alessandro Morbidelli , Kevin J. Walsh , David P. O'Brien , David A. Minton , William F. Bottke

The study of asteroid families has provided tremendous insight into the forces that sculpted the main belt and continue to drive the collisional and dynamical evolution of asteroids. The identification of asteroid families within the NEO…

Astrophysics · Physics 2009-11-11 Hai Fu , Robert Jedicke , Daniel D. Durda , Ronald Fevig , James V. Scotti

Main sequence stars, like the Sun, are often found to be orbited by circumstellar material that can be categorized into two groups, planets and debris. The latter is made up of asteroids and comets, as well as the dust and gas derived from…

Solar and Stellar Astrophysics · Physics 2015-06-18 Brenda C. Matthews , Alexander V. Krivov , Mark C. Wyatt , Geoff Bryden , Carlos Eiroa

Asteroids are classified as tiny and light objects in the solar system, however some of them possess orbiting moons. According to surveys, 15% of near-earth asteroids have moons. The Electrical Discharge effect provides a new model that…

Earth and Planetary Astrophysics · Physics 2019-10-15 Mohammad Reza Shafizadeh , Mohammad Reza Shahjahan , Saba Hafizi

The asteroid belt was dynamically shaped during and after planet formation. Despite representing a broad ring of stable orbits, the belt contains less than one one-thousandth of an Earth mass. The asteroid orbits are dynamically excited…

Earth and Planetary Astrophysics · Physics 2022-07-20 Sean N. Raymond , David Nesvorny

Suggestions have been made that asteroid belts may be important both for the existence of life and perhaps even for the evolution of complex life on a planet. Using numerical models for protoplanetary discs we calculate the location of the…

Earth and Planetary Astrophysics · Physics 2015-06-12 Rebecca G. Martin , Mario Livio

Prior to the 1990s, speculations about the occurrence of planets around other stars were based only on planet formation theory, observations of circumstellar disks, and the knowledge that at least one seemingly ordinary star had managed to…

Earth and Planetary Astrophysics · Physics 2018-09-26 Joshua N. Winn

The distribution of heavy elements is anomalously low in the asteroid main belt region compared with elsewhere in the solar system. Observational surveys also indicate a deficit in the number of small ($ \le 50$~km size) asteroids that is…

Earth and Planetary Astrophysics · Physics 2017-03-08 Xiaochen Zheng , Douglas N. C. Lin , M. B. N. Kouwenhoven

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
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