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We announce the first public release of the SDSS Moving Object Catalog, with SDSS observations for 58,117 asteroids. The catalog lists astrometric and photometric data for moving objects observed prior to Dec 15, 2001, and also includes…

天体物理学 · 物理学 2011-06-07 Z. Ivezic , M. Juric , R. H. Lupton , S. Tabachnik , T. Quinn

This study presents the first optical spectropolarimetric study of large C-complex asteroids. A total of 64 C-complex asteroids of different subclasses are analyzed using archival polarimetric and reflectance data to refine the link between…

地球与行星天体物理 · 物理学 2023-09-20 Yuna G. Kwon , Stefano Bagnulo , Alberto Cellino

We present a review of the problem of asteroid shape and spin reconstruction from generalised projections; i.e., from lightcurves, disk-resolved images, occultation silhouettes, radar range-Doppler data, and interferometry. The aim of this…

地球与行星天体物理 · 物理学 2020-05-21 Mikko Kaasalainen , Josef Durech

Large and publicly available astronomical archives open up new possibilities to search and study Solar System objects. However, advanced techniques are required to deal with the large amounts of data. These unbiased surveys can be used to…

Debris disks are created and sculpted by planetary bodies in the orbital space they share. The properties of these disks, including mass, orbital extent, and morphology, can be indicators of their planetary shepherds. Recently, T. Pearce…

地球与行星天体物理 · 物理学 2026-04-09 Elisabeth M. Penderghast , Benjamin C. Bromley , Scott J. Kenyon , Joan R. Najita

Using over 89 million astrometric observations of 349,737 numbered minor planets, an attempt was made to determine the masses of 230 of them by simultaneously solving for corrections to all orbital elements and the masses. For 132 minor…

地球与行星天体物理 · 物理学 2014-05-08 Edwin Goffin

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.…

地球与行星天体物理 · 物理学 2016-08-31 Anders Johansen , Emmanuel Jacquet , Jeffrey N. Cuzzi , Alessandro Morbidelli , Matthieu Gounelle

Asteroids are leftover pieces from the era of planet formation that help us understand conditions in the early Solar System. Unlike larger planetary bodies that were subject to global thermal modification during and subsequent to their…

地球与行星天体物理 · 物理学 2009-06-25 Kevin J. Walsh , Patrick Michel , Derek C. Richardson

This article describes a citizen-science project conducted by the Spanish Virtual Observatory (SVO) to improve the orbits of near-Earth asteroids (NEAs) using data from astronomical archives. The list of NEAs maintained at the Minor Planet…

天体物理仪器与方法 · 物理学 2015-06-15 E. Solano , C. Rodrigo , R. Pulido , B. Carry

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…

地球与行星天体物理 · 物理学 2025-01-14 D. E. Vavilov , B. Carry

Context. The close approach of the near-Earth asteroid (99942) Apophis to Earth in 2029 will provide a unique opportunity to examine how the physical properties of the asteroid could be changed due to the Earth's gravitational perturbation.…

While proper orbital elements are currently available for more than 1 million asteroids, taxonomical information is still lagging behind. Surveys like SDSS-MOC4 provided preliminary information for more than 100,000 objects, but many…

地球与行星天体物理 · 物理学 2023-11-08 Valerio Carruba , Júlio I. B. Camargo , Safwan Aljbaae , 51 co-authors , DES Collaboration

Dynamical mass estimates for the main asteroid belt and the trans-Neptunian Kuiper belt have been found from their gravitational influence on the motion of planets. Discrete rotating models consisting of moving material points have been…

地球与行星天体物理 · 物理学 2018-11-14 E. V. Pitjeva , N. P. Pitjev

In the analysis of thermal infrared data of asteroids by means of thermophysical models (TPMs) it is a common practice to neglect the uncertainty of the shape model and the rotational state, which are taken as an input for the model. Here,…

地球与行星天体物理 · 物理学 2015-05-20 Josef Hanuš , Marco Delbo' , Josef Ďurech , Victor Alí-Lagoa

We present a comparison of our results from ground-based observations of asteroid (21) Lutetia with imaging data acquired during the flyby of the asteroid by the ESA Rosetta mission. This flyby provided a unique opportunity to evaluate and…

Satellites of asteroids have been discovered in nearly every known small body population, and a remarkable aspect of the known satellites is the diversity of their properties. They tell a story of vast differences in formation and evolution…

地球与行星天体物理 · 物理学 2016-08-31 Kevin J. Walsh , Seth A. Jacobson

Photometric measurements allow the determination of an asteroid's absolute magnitude, which often represents the sole means to infer its size. Photometric observations can be obtained in a variety of filters that can be unique to a specific…

地球与行星天体物理 · 物理学 2024-11-12 Tobias Hoffmann , Marco Micheli , Juan Luis Cano , Maxime Devogèle , Davide Farnocchia , Petr Pravec , Peter Vereš , Björn Poppe

Results of photometric observations of a small sample of selected Main Belt asteroids are presented. The obtained measurements can be used to achieve a better calibration of the asteroid photometric system $(H, G_1, G_2)$ adopted by the…

地球与行星天体物理 · 物理学 2019-03-29 A. Carbognani , A. Cellino , S. Caminiti

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…

地球与行星天体物理 · 物理学 2016-08-31 Francesca E. DeMeo , Conel M. O'D. Alexander , Kevin J. Walsh , Clark R. Chapman , Richard P. Binzel

The lightcurves of asteroids are essential for determining their physical characteristics, including shape, spin, size, and surface composition. However, most asteroids are missing some of these basic physical parameters due to lack of…