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With the growing numbers of asteroids being discovered, identifying an observationally complete sample is essential for statistical analyses and for informing theoretical models of the dynamical evolution of the solar system. We present an…

Earth and Planetary Astrophysics · Physics 2020-10-16 Nathanial P Hendler , Renu Malhotra

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

Rectified diameters and albedo estimates of 1517 main belt asteroid selected from the IRAS and MSX asteroid photometry catalogues are derived from updated infrared thermal models, the Standard Thermal Model (STM) and the Near Earth Asteroid…

Earth and Planetary Astrophysics · Physics 2015-05-19 Erin Lee Ryan , Charles E. Woodward

The bulk density of an asteroid informs us about its interior structure and composition. To constrain the bulk density one needs an estimate for the mass of the asteroid. The mass is estimated by analyzing an asteroid's gravitational…

Earth and Planetary Astrophysics · Physics 2020-01-15 L. Siltala , M. Granvik

V-type asteroids, characterized by two absorption bands at 1.0 and 2.0 $\mu m$, are usually thought to be portions of the crust of differentiated or partially differentiated bodies. Most V-type asteroids are found in the inner main belt and…

Earth and Planetary Astrophysics · Physics 2015-06-22 Mariela E. Huaman , Valerio Carruba , Rita Cassia Domingos

Near Earth Objects (NEOs) are a transient population of small bodies with orbits near or in the terrestrial planet region. They represent a mid-stage in the dynamical cycle of asteroids and comets, which starts with their removal from the…

We use observations from the Catalina Sky Survey (CSS) to determine the bias-corrected population of small members in four very young families down to sizes equivalent to several hundred meters. Using the most recent catalog of known…

Earth and Planetary Astrophysics · Physics 2023-10-30 David Vokrouhlický , David Nesvorný , Miroslav Brož , William F. Bottke

Solar system small bodies come in a wide variety of shapes and sizes, which are achieved following very individual evolutional paths through billions of years. This paper focuses on the reshaping process of rubble-pile asteroids driven by…

Earth and Planetary Astrophysics · Physics 2017-08-03 Yang Yu , Derek C. Richardson , Patrick Michel

The rotational properties of asteroids provide critical information about not only their internal structure but also their collisional and thermal histories. Previous work has revealed a bimodal distribution of asteroid spin rates, dividing…

Earth and Planetary Astrophysics · Physics 2026-03-11 T. J. Dyer , W. -H. Zhou , C. Avdellidou , M. Delbo , D. Athanasopoulos , J. Ďurech , P. Pravec

Quantifying the accuracy with which physical properties of asteroids can be determined from thermal modeling is critical to measuring the impact of infrared data on our understanding of asteroids. Previous work (Mainzer et al. 2011b) has…

Earth and Planetary Astrophysics · Physics 2018-08-08 Joseph R. Masiero , A. K. Mainzer , E. L. Wright

The locations of the fully despun, double synchronous end states of tidal evolution are derived for spherical components. With the exception of nearly equal-mass binaries, binary asteroid systems are in the midst of lengthy tidal…

Earth and Planetary Astrophysics · Physics 2015-03-18 Patrick A. Taylor , Jean-Luc Margot

Context. To investigate the distribution of rotation periods of asteroids from different regions of the Solar System and distribution of diameters of near-Earth asteroids (NEAs). Aims. Verify if nonextensive statistics satisfactorily…

Earth and Planetary Astrophysics · Physics 2012-05-29 Alberto S. Betzler , Ernesto P. Borges

Most main-belt asteroids are primitive rock and metal bodies in orbit about the Sun between Mars and Jupiter. Disruption, through high velocity collisions or rotational spin-up, is believed to be the primary mechanism for the production and…

Earth and Planetary Astrophysics · Physics 2010-10-14 David Jewitt , Harold Weaver , Jessica Agarwal , Max Mutchler , Michal Drahus

In the standard formation models of terrestrial planets in the solar system and close-in super-Earths in non-resonant orbits recently discovered by exoplanet observations, planets are formed by giant impacts of protoplanets or planetary…

Earth and Planetary Astrophysics · Physics 2025-09-09 Eiichiro Kokubo , Haruka Hoshino , Yuji Matsumoto , Re'em Sari

The past decade has brought major improvements in large-scale asteroid discovery and characterization with over half a million known asteroids and over 100,000 with some measurement of physical characterization. This explosion of data has…

Earth and Planetary Astrophysics · Physics 2016-08-31 Francesca E. DeMeo , Conel M. O'D. Alexander , Kevin J. Walsh , Clark R. Chapman , Richard P. Binzel

We searched for young asteroid families -- those with ages t_age < 10 Myr and at least three members -- using the proper element catalog from Nesvorny et al. (2024). Our approach employed the Hierarchical Clustering Method (HCM) in a…

Earth and Planetary Astrophysics · Physics 2025-08-04 David Nesvorny , David Vokrouhlicky , Miroslav Broz , Fernando V. Roig

We use optical data on 10 Kuiper Belt objects (KBOs) to investigate their rotational properties. Of the 10, three (30%) exhibit light variations with amplitude delta_m >= 0.15 mag, and 1 out of 10 (10%) has delta_m >= 0.40 mag, which is in…

Astrophysics · Physics 2008-11-26 Pedro Lacerda , Jane Luu

Most asteroids with a diameter larger than $\sim 300 \ {\rm m}$ are rubble piles i.e. consisting of more than one solid object. All asteroids are rotating but almost all asteroids larger than $\sim 300 \ {\rm m}$ rotate with a period longer…

Earth and Planetary Astrophysics · Physics 2021-10-29 B. N. J. Persson , J. Biele

Spin off events and impacts can eject boulders from an asteroid surface and rubble pile asteroids can accumulate from debris following a collision between large asteroids. These processes produce a population of gravitational bound objects…

Earth and Planetary Astrophysics · Physics 2020-07-08 Esteban Wright , Alice Quillen , Juiliana South , Randal C. Nelson , Paul Sanchez , John Siu , Hesam Askari , Miki Nakajima , Stephen R. Schwartz

We measure the mid-plane of the main asteroid belt by using the observational data of a nearly complete and unbiased sample of asteroids, and find that it has inclination $\bar{I}=0.93\pm0.04$ degrees and longitude of ascending node…

Earth and Planetary Astrophysics · Physics 2018-03-21 Saverio Cambioni , Renu Malhotra