Results 1 to 10 of about 164,857 (187)
The Distribution of Highly Red-sloped Asteroids in the Middle and Outer Main Belt [PDF]
The Planetary Science JournalRed ( S > 10%/0.1 μ m) spectral slopes are common among Centaurs and trans-Neptunian objects (TNOs) in the outer solar system. Interior to and co-orbital with Jupiter, the red ( S ∼ 10%/0.1 μ m) slopes of D-type main-belt and Jupiter Trojan asteroids are
Oriel A. Humes +2 more
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Comparative Mid-infrared Spectroscopy of Dark, Primitive Asteroids: Does Shared Taxonomic Class Indicate Shared Silicate Composition? [PDF]
The Planetary Science JournalPrimitive asteroids with low albedos and red slopes in the visible and near-infrared (VNIR) are found in both the main belt and the Jupiter Trojan clouds.
Oriel A. Humes +3 more
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Numerical simulations suggest asteroids (101955) Bennu and (162173) Ryugu are likely second or later generation rubble piles [PDF]
Nature CommunicationsRubble pile asteroids are widely understood to be composed of reaccumulated debris following a catastrophic collision between asteroids in the main asteroid belt, where each disruption can make a family of new asteroids.
K. J. Walsh +14 more
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Candidate Main-belt Asteroids for Surface Heterogeneity [PDF]
The Astronomical JournalLarge terrestrial bodies in our solar system like the Earth, Mars, Mercury, and the Moon exhibit geologically complex surfaces with compositional heterogeneity.
Sunao Hasegawa +12 more
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The Planetary Science Journal, 2023 Asteroid diameters are traditionally difficult to estimate. When a direct measurement of the diameter cannot be made through either occultation or direct radar observations, the most common method is to approximate the diameter from infrared observations.
Zachary Murray
doaj +3 more sources
Size and Albedo Constraints for (152830) Dinkinesh Using WISE Data
The Astrophysical Journal Letters, 2023 Probing small main-belt asteroids provides insight into their formation and evolution through multiple dynamical and collisional processes. These asteroids also overlap in size with the potentially hazardous near-Earth object population and supply the ...
Kiana D. McFadden +9 more
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Taxonomic Analysis of Asteroids with Artificial Neural Networks
The Astronomical Journal, 2023 We study the surface composition of asteroids with visible and/or infrared spectroscopy. For example, asteroid taxonomy is based on the spectral features or multiple color indices in visible and near-infrared wavelengths.
Nanping Luo +5 more
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Determining the Pyroxene Mineralogies of Vestoids
The 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
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The Challenge of Measuring Asteroid Masses with Gaia DR2 Astrometry
The 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
Near-Ultraviolet Absorption Distribution of Primitive Asteroids from Spectrophotometric Surveys [PDF]
A&A 672, A189 (2023), 2023 Aims: Our objectives were first to evaluate the possibility for using the NUV absorption as diagnostics of hydrated minerals based on the recent datasets of primitive asteroids and hydrated carbonaceous chondrites, and second to investigate the reflectance spectrophotometry of the primitive asteroids in the NUV as functions of heliocentric distance and
arxiv +1 more source