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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

Main-belt asteroids have been continuously colliding with one another since they were formed. Its size distribution is primarily determined by the size dependence of asteroid strength against catastrophic impacts. The strength scaling law…

Earth and Planetary Astrophysics · Physics 2015-06-16 Tsuyoshi Terai , Jun Takahashi , Yoichi Itoh

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

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

Although petrologic, chemical and isotopic studies of ordinary chondrites and meteorites in general have largely helped establish a chronology of the earliest events of planetesimal formation and their evolution, there are several questions…

Earth and Planetary Astrophysics · Physics 2015-06-19 P. Vernazza , B. Zanda , R. P. Binzel , T. Hiroi , F. E. DeMeo , M. Birlan , R. Hewins , L. Ricci , P. Barge , M. Lockhart

We present an analysis of the accuracy of geometric albedos determined for asteroids through the modeling of observed thermal infrared radiation. We show that albedo uncertainty is dominated by the uncertainty on the measured $H_V$ absolute…

Earth and Planetary Astrophysics · Physics 2021-01-11 Joseph R. Masiero , E. L. Wright , A. K. Mainzer

The methods of determining the fractal dimension and irregularity scale in simulated galaxy catalogs and the application of these methods to the data of the 2dF and 6dF catalogs are analyzed. Correlation methods are shown to be correctly…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Nikita Yu. Lovyagin

Orbital resonances are believed to be responsible for the delivery of main belt asteroids to the inner Solar System. Several possibilities have been suggested to transport asteroids and their fragments into mean motion and secular…

Earth and Planetary Astrophysics · Physics 2013-12-12 Anatoliy Ivantsov , Siegfried Eggl , Daniel Hestroffer , William Thuillot

Thermal infrared observations are the most effective way to measure asteroid diameter and albedo for a large number of near-Earth objects. Major surveys like NEOWISE, NEOSurvey, ExploreNEOs, and NEOLegacy find a small fraction of high…

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

Determining the size and orbital distribution of the population of near-Earth asteroids (NEAs) is the focus of intense research, with the most recent models converging to a population of approximately $1000$ NEAs larger than 1 km and up to…

Earth and Planetary Astrophysics · Physics 2016-12-21 Pasquale Tricarico

Estimates for asteroid masses are based on their gravitational perturbations on the orbits of other objects such as Mars, spacecraft, or other asteroids and/or their satellites. In the case of asteroid-asteroid perturbations, this leads to…

Earth and Planetary Astrophysics · Physics 2017-07-26 L. Siltala , M. Granvik

Asteroid families, traditionally defined as clusters of objects in orbital parameter space, often have distinctive optical colors. We show that the separation of family members from background interlopers can be improved with the aid of…

An asteroid pair can be described as two asteroids with highly similar heliocentric orbits that are genetically related but not gravitationally bound. They can be produced by asteroid collisions or rotational fission. Although over 200…

Earth and Planetary Astrophysics · Physics 2021-11-03 Ihor Kyrylenko , Yurij N. Krugly , Oleksiy Golubov

In a previous paper we simulated the orbital evolution of dust particles from the Jupiter Trojan asteroids ejected by the impacts of interplanetary particles, and evaluated their overall configuration in the form of dust arcs. Here we…

Earth and Planetary Astrophysics · Physics 2018-06-20 Xiaodong Liu , Jürgen Schmidt

Thermal inertia determines the temperature distribution over the surface of an asteroid and therefore governs the magnitude the Yarkovsky effect. The latter causes gradual drifting of the orbits of km-sized asteroids and plays an important…

Astrophysics · Physics 2007-05-23 Marco Delbo , Aldo Dell'oro , Alan W. Harris , Stefano Mottola , Michael Mueller

We explore the correlation between an asteroid's taxonomy and photometric phase curve using the H, G12 photometric phase function, with the shape of the phase function described by the single parameter G12. We explore the usability of G12…

Earth and Planetary Astrophysics · Physics 2015-06-04 D. A. Oszkiewicz , E. Bowell , L. H. Wasserman , K. Muinonen , A. Penttilä , T. Pieniluoma , D. E. Trilling , C. A. Thomas

Photometric lightcurves were also obtained for 14 of them during the Spitzer observations to provide the context of the observations and reliable estimates of their absolute magnitudes. The extracted mid-IR spectra were analyzed using a…

We obtain new results concerning the Sato-Tate conjecture on the distribution of Frobenius traces over single and double parametric families of elliptic curves. We consider these curves for values of parameters having prescribed arithmetic…

Number Theory · Mathematics 2018-03-08 Régis de la Bretèche , Min Sha , Igor E. Shparlinski , José Felipe Voloch

The observationally complete sample of the main belt asteroids now spans more than two orders of magnitude in size and numbers more than 64,000 (excluding collisional family members). We undertook an analysis of asteroids' eccentricities…

Earth and Planetary Astrophysics · Physics 2017-01-11 Renu Malhotra , Xianyu Wang
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