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In order to fully understand the shapes of asteroids families in the 3-dimensional space of the proper elements $(a_{\rm p}, e_{\rm p}, \sin I_{\rm p})$ it is necessary to compare observed asteroids with N-body simulations. To this point,…

Earth and Planetary Astrophysics · Physics 2018-10-10 Miroslav Brož , Alessandro Morbidelli

This study examines the rotational characteristics of asteroids through statistical modeling of the diameter-period relationship. A statistical evaluation of the diameter-period relationship was conducted using a dataset of 34,326…

Earth and Planetary Astrophysics · Physics 2025-08-26 Maryam Nastaran , Atila Poro , Raziyeh Hosseini , Matin Najarzadeh

Tidal dissipation in a celestial body can be used to probe its internal structure. Tides govern the orbital evolution of binary systems and therefore constraints on the interior of binary system members can be derived by knowing the age and…

Earth and Planetary Astrophysics · Physics 2024-03-13 Laurent Pou , Francis Nimmo

Using a fully autonomous spacecraft - Bering - we propose to detect and study sub-km asteroids from an orbit within the asteroid Main Belt. The main purpose of the proposed Bering mission is to detect a statistically significant sample of…

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

The near-Earth asteroid population suggests the existence of an inner Main Belt source of asteroids that belongs to the spectroscopic X-complex and has moderate albedos. The identification of such a source has been lacking so far. We argue…

Earth and Planetary Astrophysics · Physics 2019-04-17 Marco Delbo , Chrysa Avdellidou , Alessandro Morbidelli

Observations of the Kuiper Belt indicate that a larger than expected percentage of KBO's (approximately 8 out of 500) are in binary pairs. The formation and survival of such objects presents a conundrum [1]. Two competing theories have been…

Space Physics · Physics 2007-05-23 R. C. Nazzario , T. W. Hyde

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

A determination of the dynamical evolution of the asteroid belt is difficult because the asteroid belt has evolved since the time of asteroid formation through mechanisms that include: (1) catastrophic collisions, (2) rotational disruption,…

Earth and Planetary Astrophysics · Physics 2021-05-26 Stanley F. Dermott , Dan Li , Apostolos A. Christou , Thomas J. J. Kehoe , Carl D. Murray , J. Malcolm Robinson

Probability of coincidental clustering among the orbits of comets, asteroids and meteoroids depends on many factors like: the size of the orbital sample searched for clusters or the size of the identified group, it is different for groups…

Earth and Planetary Astrophysics · Physics 2017-06-28 Tadeusz J. Jopek , Malgorzata Bronikowska

More than a half of asteroids in the main belt have irregular shapes with the ratios of the minor to major axis lengths less than 0.6. One of the mechanisms to create such shapes is collisions between asteroids. The relationship between…

Earth and Planetary Astrophysics · Physics 2018-12-12 Keisuke Sugiura , Hiroshi Kobayashi , Shu-ichiro Inutsuka

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

Satellites around large asteroids are preferentially found among those with the most rapid rotation and elongated shape. The taxonomic statistics are similarly skewed; in total, 13 asteroids larger than 100 km are known to have satellites,…

Earth and Planetary Astrophysics · Physics 2025-05-07 Kevin J. Walsh , Ronald-Louis Ballouz , Harrison F. Agrusa , Josef Hanus , Martin Jutzi , Patrick Michel

Here we show an example of a young asteroid cluster located in a dynamically stable region, which was produced by partial disruption of a primitive body about 30 km in size. We estimate its age to be only 1.9 +/- 0.3 Myr, thus its…

Earth and Planetary Astrophysics · Physics 2012-07-10 Bojan Novakovic , Aldo Dell'Oro , Alberto Cellino , Zoran Knezevic

Very young asteroid families may record processes that accompanied their formation in the most pristine way. This makes analysis of this special class particularly interesting. We studied the very young Adelaide family in the inner part of…

Earth and Planetary Astrophysics · Physics 2021-05-26 D. Vokrouhlický , B. Novaković , D. Nesvorný

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

Understanding the dynamical evolution of asteroids through the secular Yarkovsky effect requires the determination of many physical properties, including the rotation period. We propose a method aimed at obtaining a robust determination of…

Earth and Planetary Astrophysics · Physics 2025-01-14 D. E. Vavilov , B. Carry

Open clusters (OCs) in our Galaxy can be found in pairs, possibly forming physical binaries, or in groups. These objects offer unique insights into the process of star formation and testify to the dynamical interactions at local and…

Astrophysics of Galaxies · Physics 2026-04-22 Qingshun Hu , Yufei Cai , Caroline Soubiran , Yu Dai , Yuting Li , Yangping Luo , Mingfeng Qin

Using albedos from WISE/NEOWISE to separate distinct albedo groups within the Main Belt asteroids, we apply the Hierarchical Clustering Method to these subpopulations and identify dynamically associated clusters of asteroids. While this…

Earth and Planetary Astrophysics · Physics 2015-06-15 Joseph R. Masiero , A. K. Mainzer , J. M. Bauer , T. Grav , C. R. Nugent , R. Stevenson

After performing a reassessment of the known dynamical asteroid families in the inner main belt, we report a newly discovered ancient asteroid family with an estimated age of $4.3\pm1.7$ billion years. Additionally, we report the most…

Earth and Planetary Astrophysics · Physics 2023-08-02 Salvatore Ferrone , Marco Delbo , Chrysa Avdellidou , Rogerio Deienno , Robert Melikyan , Kevin Walsh , Alessandro Morbidelli