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From the results of a comprehensive asteroid population evolution model, we conclude that the YORP-induced rotational fission hypothesis can be consistent with the observed population statistics of small asteroids in the main belt including…

Earth and Planetary Astrophysics · Physics 2016-06-10 Seth Andrew Jacobson , Francesco Marzari , Alessandro Rossi , Daniel J. Scheeres

The Mars crossing region constitutes a path to deliver asteroids from the Inner Main Belt to the Earth crossing space. While both the Inner Main Belt and the population of Earth crossing asteroids contains a significant fraction of…

Earth and Planetary Astrophysics · Physics 2015-06-16 A. O. Ribeiro , F. Roig , M. Cañada-Assandri , J. M. F. Carvano , F. L. Jasmin , A. Alvarez-Candal , R. Gil-Hutton

We have used numerical routines to model the evolution of a simulated Baptistina family to constrain its age in light of new measurements of the diameters and albedos of family members from the Wide-field Infrared Survey Explorer. We also…

Earth and Planetary Astrophysics · Physics 2015-06-11 Joseph R. Masiero , A. K. Mainzer , T. Grav , J. M. Bauer , R. Jedicke

Using published simulations of the 10-year Legacy Survey of Space and Time (LSST), we forecast its ability to determine the masses of individual main-belt asteroids (MBAs) through precise astrometry of any pairs of the ~1.2 million known…

Earth and Planetary Astrophysics · Physics 2025-04-03 Gary M. Bernstein , Negin Najafi , Daniel C. H. Gomes

A comprehensive characterization of the detection efficiency of nine of the major asteroid surveys that have been active over the past two decades is presented. The detection efficiency is estimated on a nightly basis by comparing the…

Earth and Planetary Astrophysics · Physics 2016-03-16 Pasquale Tricarico

We investigated the population of asteroids in comet-like orbits using available asteroid size and albedo catalogs of data taken with the Infrared Astronomical Satellite, AKARI, and the Wide-field Infrared Survey Explorer on the basis of…

Earth and Planetary Astrophysics · Physics 2015-06-19 Yoonyoung Kim , Masateru Ishiguro , Fumihiko Usui

The Flora family resides in the densely populated inner main belt, bounded in semimajor axis by the $\nu_6$ secular resonance and the Jupiter 3:1 mean motion resonance. The presence of several large families that overlap dynamically with…

Earth and Planetary Astrophysics · Physics 2015-06-19 Melissa J. Dykhuis , Lawrence Molnar , Samuel J. Van Kooten , Richard Greenberg

We aim to provide a taxonomic classification for asteroids observed by VISTA-VHS survey. We derive a method for assigning a compositional type to an object based on its (Y-J), (J-Ks), and (H-Ks) colors. We present a taxonomic classification…

Earth and Planetary Astrophysics · Physics 2018-09-12 M. Popescu , J. Licandro , J. M. Carvano , R. Stoicescu , J. de Leon , D. Morate , I. L. Boaca , C. P. Cristescu

Rotational dynamics of asteroids carry important information about their internal structure, collisional history and material composition. This work investigates whether M-type asteroids exhibit systematically higher rotation rates than the…

Earth and Planetary Astrophysics · Physics 2026-05-27 Fernando Abarzuza , Noemí Pinilla-Alonso , Miquel Serra-Ricart , Santiago Iglesias Álvarez , Miguel R. Alarcon

Modern astronomical surveys detect asteroids by linking together their appearances across multiple images taken over time. This approach faces limitations in detecting faint asteroids and handling the computational complexity of trajectory…

Earth and Planetary Astrophysics · Physics 2025-09-25 Nathan Golovich , Trevor Steil , Alex Geringer-Sameth , Keita Iwabuchi , Ryan Dozier , Roger Pearce

Deflecting an asteroid from an Earth impact trajectory requires only small velocity changes, typically of the order of microns per second, if done many years ahead of time. For this, a highly precise method of determining the need,…

Space Physics · Physics 2008-09-17 Bernhard W. Adams

Bright fireballs or bolides are caused by meteoroids entering the Earth's atmosphere at high speed. On 2013 February 15, a superbolide was observed in the skies near Chelyabinsk, Russia. Such a meteor could be the result of the decay of an…

Earth and Planetary Astrophysics · Physics 2013-12-17 C. de la Fuente Marcos , R. de la Fuente Marcos

Asteroid pairs had a single progenitor that split due to rotational-fission of a weak, rubble-pile structured body. By constructing shape models of asteroid pairs from multiple-apparition observations and using a lightcurve inversion…

Earth and Planetary Astrophysics · Physics 2019-11-06 David Polishook , Oded Aharonson

$v_W$ leptokurtic asteroid families are families for which the distribution of the normal component of the terminal ejection velocity field $v_W$ is characterized by a positive value of the ${\gamma}_2$ Pearson kurtosis, i.e., they have a…

Earth and Planetary Astrophysics · Physics 2016-08-24 V. Carruba , R. C. Domingos , S. Aljbaae , M. Huaman

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

Asteroid diameters are traditionally difficult to estimate. When a direct measurement of the diameter cannot be made through either occultation or direct radar observation, the most common method is to approximate the diameter from infrared…

Earth and Planetary Astrophysics · Physics 2023-05-29 Zachary Murray

We explore the Yarkovsky effect on small binary asteroids. While significant attention has been given to the binary YORP effect, the Yarkovsky effect is often overlooked. We develop an analytical model for the binary Yarkovsky effect,…

Earth and Planetary Astrophysics · Physics 2024-12-03 Wen-Han Zhou , David Vokrouhlicky , Masanori Kanamaru , Harrison Agrusa , Petr Pravec , Marco Delbo , Patrick Michel

The binary Yarkovsky effect on the secondary asteroid (BYS) was recently discovered to influence binary asteroid systems by pushing the secondary asteroid toward a synchronous orbit on a short timescale. However, the binary Yarkovsky effect…

Earth and Planetary Astrophysics · Physics 2024-12-02 Wen-Han Zhou

The members of asteroid families have various shapes. We investigate the origin of their shapes by high-resolution impact simulations for catastrophic disruptions using a Smoothed Particle Hydrodynamics code. Collisional remnants produced…

Earth and Planetary Astrophysics · Physics 2020-02-12 Keisuke Sugiura , Hiroshi Kobayashi , Shu-ichiro Inutsuka

The theory of diffusion in many-dimensional Hamiltonian system is applied to asteroidal dynamics. The general formulations developed by Chirikov is applied to the Nesvorn\'{y}-Morbidelli analytic model of three-body (three-orbit)…

Earth and Planetary Astrophysics · Physics 2010-09-21 Fernando Cachucho , Pablo M. Cincotta , Sylvio Ferraz-Mello