Results 21 to 30 of about 50,771 (302)

Determining the Pyroxene Mineralogies of Vestoids

open access: yesThe Planetary Science Journal, 2023
Bulk pyroxene compositions were calculated for a number of V-type asteroid spectra using formulae derived by Burbine et al. These formulae were derived by analyzing HED (howardite, eucrite, and diogenite) meteorites and calculate bulk Fs (mol%) and Wo ...
T. H. Burbine   +3 more
doaj   +1 more source

Dynamical evolution of basaltic asteroids outside the Vesta family in the inner main belt [PDF]

open access: yesAstronomy & Astrophysics, 2023
Basaltic V-type asteroids are leftovers from the formation and evolution of differentiated planetesimals. They are thought to originate from mantles and crusts of multiple different parent bodies. Identifying the links between individual V-type asteroids
V. Troianskyi   +2 more
semanticscholar   +1 more source

Polarimetric survey of main-belt asteroids [PDF]

open access: yesAstronomy & Astrophysics, 2011
Aims. We present the first results of a polarimetric survey of main-belt asteroids at Complejo Astronomico El Leoncito (Casleo), San Juan, Argentina. The aims of this survey are to increase the database of asteroid polarimetry, to estimate diversity in polarimetric properties of asteroids that belong to different taxonomic classes, and to search for ...
R. Gil-Hutton, M. Cañada-Assandri
openaire   +3 more sources

The Challenge of Measuring Asteroid Masses with Gaia DR2 Astrometry

open access: yesThe Planetary Science Journal, 2023
The Gaia second data release (DR2) contains high-accuracy astrometric measurements of thousands of solar system bodies. These measurements raise the possibility of determining asteroid masses by modeling scattering events between massive objects observed
Zachary Murray
doaj   +1 more source

The Flux Distribution and Sky Density of 25th Magnitude Main Belt Asteroids [PDF]

open access: yesAstronomical Journal, 2019
Digital tracking enables telescopes to detect asteroids several times fainter than conventional techniques. We describe our optimized methodology to acquire, process, and interpret digital tracking observations, and we apply it to probe the apparent ...
A. Heinze, Joseph Trollo, S. Metchev
semanticscholar   +1 more source

Thermal Properties of 1847 WISE-observed Asteroids

open access: yesThe Planetary Science Journal, 2022
We present new thermophysical model fits of 1847 asteroids, deriving thermal inertia, diameter, and Bond and visible geometric albedo. We use thermal flux measurements obtained by the Wide-field Infrared Survey Explorer (WISE) during its fully cryogenic ...
Denise Hung   +3 more
doaj   +1 more source

Asteroid family identification using the Hierarchical Clustering Method and WISE/NEOWISE physical properties [PDF]

open access: yes, 2013
Using albedos from WISE/NEOWISE to separate distinct albedo groups within the Main Belt asteroids, we apply the Hierarchical Clustering Method to these subpopulations and identify dynamically associated clusters of asteroids. While this survey is limited
Bauer, J. M.   +5 more
core   +1 more source

Catalog of Proper Orbits for 1.25 Million Main-belt Asteroids and Discovery of 136 New Collisional Families [PDF]

open access: yesAstrophysical Journal Supplement Series
The proper elements of asteroids are obtained from the instantaneous orbital elements by removing periodic oscillations produced by gravitational interactions with planets.
D. Nesvorný   +3 more
semanticscholar   +1 more source

Taxonomy and Light-curve Data of 1000 Serendipitously Observed Main-belt Asteroids [PDF]

open access: yesAstrophysical Journal Supplement Series, 2018
We present VRI spectrophotometry of 1003 main-belt asteroids (MBAs) observed with the Sutherland, South Africa node of the Korea Microlensing Telescope Network (KMTNet).
N. Erasmus   +5 more
semanticscholar   +1 more source

Detectability of the Yarkovsky Effect in the Main Belt

open access: yesThe Planetary Science Journal, 2023
We attempt to detect a signal of Yarkovsky-related acceleration in the orbits of 134 main belt asteroids (MBAs) we observed with the University of Hawai’i 88 inch telescope, supplemented with observations publicly available from the Minor Planet Center ...
Denise Hung   +3 more
doaj   +1 more source

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