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In this work, we study the continuation of a periodic orbit on a relatively large scale and discover the existence of convergence under certain conditions, which has profound significance in research on asteroids and can provide a total…

Earth and Planetary Astrophysics · Physics 2020-10-26 Haokun Kang , Yu Jiang , Hengnian Li

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

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

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

We analyze a sample of 139 near-Earth asteroids (NEAs), defined as those that reach perihelion distances $q < 1.3$ au, and that also fulfill the conditions of approaching or crossing Jupiter's orbit (aphelion distances $Q > 4.8$ au), having…

Earth and Planetary Astrophysics · Physics 2014-05-08 Julio A. Fernández , Andrea Sosa , Tabaré Gallardo , Jorge N. Gutiérrez

Among the near-Earth object (NEO) population there are comets and active asteroids which are sources of fragments that initially move together; in addition, some NEOs follow orbits temporarily trapped in a web of secular resonances. These…

Earth and Planetary Astrophysics · Physics 2016-01-05 C. de la Fuente Marcos , R. de la Fuente Marcos

Mercury's orbit can destabilize, generally resulting in a collision with either Venus or the Sun. Chaotic evolution can cause g1 to decrease to the approximately constant value of g5 and create a resonance. Previous work has approximated…

Earth and Planetary Astrophysics · Physics 2024-04-16 Dorian S. Abbot , Robert J. Webber , David M. Hernandez , Sam Hadden , Jonathan Weare

Tumbling asteroids belong to a small group of objects, whose angular velocity vector is unaligned with any of its principal axes of inertia. This leads to challenging efforts to model the trajectory of any spacecraft designed to orbit these…

Earth and Planetary Astrophysics · Physics 2021-05-31 S. Aljbaae , J. Souchay , V. Carruba , D. M. Sanchez , A. F. B. A. Prado

All near-Earth asteroids (NEAs) that reach sufficiently small perihelion distances will undergo a so-called super-catastrophic disruption. The mechanisms causing such disruptions are currently unknown or, at least, undetermined. To help…

Earth and Planetary Astrophysics · Physics 2023-04-04 Athanasia Toliou , Mikael Granvik

The Quadrantid meteor shower is among the strongest annual meteor showers, and has drawn the attention of scientists for several decades. The stream is unusual, among others, for several reasons: its very short duration around maximum…

Earth and Planetary Astrophysics · Physics 2015-09-16 Abedin Abedin , Pavel Spurny , Paul Wiegert , Petr Pokorny , Jiri Borovicka , Peter Brown

We use the current orbital structure of large (>50km) asteroids in the main asteroid belt to constrain the evolution of the giant planets when they migrated from their primordial orbits to their current ones. Minton & Malhotra (2009) showed…

Earth and Planetary Astrophysics · Physics 2015-05-19 Alessandro Morbidelli , Ramon Brasser , Rodney Gomes , Harold F. Levison , Kleomenis Tsiganis

This chapter summarizes analytic theory and numerical calculations for the formation and collisional evolution of KBOs at 20--150 AU. We describe the main predictions of a baseline self-stirring model and show how dynamical perturbations…

Astrophysics · Physics 2007-05-23 Scott J. Kenyon , Benjamin C. Bromley , David P. O'Brien , Donald R. Davis

A numerical integration of the equations of motion of the Sun-planets-an object system is used to study the evolution of orbits close to the orbit of the P/1996 R2 object, which is a Jupiter-crossing object, and to the asteroidal orbit of…

Earth and Planetary Astrophysics · Physics 2024-12-18 S. I. Ipatov , G. J. Hahn

In this paper, the minimum orbit intersection distances (MOIDs) of near-Earth asteroids (NEAs) over the next 200 years were computed and analyzed in detail. It was shown that the MOID of a NEA relative to the Earth-Moon barycenter (EMB) is…

Earth and Planetary Astrophysics · Physics 2025-05-06 Shoucun Hu , Yuanyuan Chen , Xinran Li , Xiuhai Wang , Xuefeng Wang

Using our photometric observations taken between 1996 and 2013 and other published data, we derived properties of the binary near-Earth asteroid (175706) 1996 FG3 including new measurements constraining evolution of the mutual orbit with…

The discovery of over 50 planets around evolved stars and more than 35 debris discs orbiting white dwarfs highlight the increasing need to understand small body evolution around both early and asymptotic giant branch (GB) stars. Pebbles and…

Earth and Planetary Astrophysics · Physics 2015-05-21 Dimitri Veras , Siegfried Eggl , Boris T. Gaensicke

We analyse how drag forces modify the orbits of objects moving through extended gaseous distributions. We consider how hydrodynamic (surface area) drag forces and dynamical friction (gravitational) drag forces drive the evolution of orbital…

Earth and Planetary Astrophysics · Physics 2022-05-13 Ákos Szölgyén , Morgan MacLeod , Abraham Loeb

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

An asteroid spun up to its critical limit has unique surface mechanical properties that its gravity and the centrifugal force largely balance, creating a relaxation environment where low-energy events such as mass shedding may trigger…

Earth and Planetary Astrophysics · Physics 2023-04-26 Zhijun Song , Yang Yu , Bin Cheng , Jing Lv , Hexi Baoyin

At a mean diameter of ~650 m, the near-Earth asteroid (455213) 2001 OE84 (OE84 for short) has a rapid rotation period of 0.486542+-0.000002 hours, which is uncommon for asteroids larger than ~200 m. We revisited OE84 14 years after it was…

Earth and Planetary Astrophysics · Physics 2017-07-26 David Polishook , Nicholas Moskovitz , Audrey Thirouin , Amanda Bosh , Stephen Levine , Carlos Zuluaga , Stephen Tegler , Oded Aharonson