Dynamical evolution of V-type photometric candidates in the outer Main-belt

Abstract

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 are thought to be current or past members of the Vesta dynamical family. Recently, several V-type photometric candidates have been identified in the central and outer main belt. While the dynamical evolution of V-type photometric candidates in the central main belt has been recently investigated, less attention has been given to the orbital evolution of basaltic material in the outer main belt as a whole. Here we identify known and new V-type photometric candidates in this region, and study their orbital evolution under the effect of gravitational and non-gravitational forces. A scenario in which a minimum of three local sources, possibly associated with the parent bodies of (349) Dembowska, (221) Eos, and (1459) Magnya, could in principle explain the current orbital distribution of V-type photometric candidates in the region.

arXiv commentThis paper has 6 figures and 1 table. Accepted for publication in MNRAS. arXiv admin note: text overlap with arXiv:1401.6332

References in corpus (8)

• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• Preliminary Results from NEOWISE: An Enhancement to the Wide-field Infrared Survey Explorer for Solar System Science
• Main Belt Asteroids with WISE/NEOWISE I: Preliminary Albedos and Diameters
• The taxonomic distribution of asteroids from multi-filter all-sky photometric surveys
• Asteroid families classification: exploiting very large data sets
• Dynamical evolution of V-type asteroids in the central main belt
• A Spectroscopically Unique Main Belt Asteroid: 10537 (1991 RY16)
• Dynamical evolution and chronology of the Hygiea asteroid family

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• Zero-phase angle asteroid taxonomy classification using unsupervised machine learning algorithms
• Basaltic material in the main belt: a tale of two (or more) parent bodies?
• Influence of the Centaurs and TNOs on the main belt and its families
• V-type Near-Earth asteroids: dynamics, close encounters and impacts with terrestrial planets