Results 51 to 60 of about 15,866 (198)
Regolith mechanics on Asteroid surfaces
, 2017 Introduction: It is very likely that most aster- oids surfaces are covered by a regolith layer. We are focussing on the mechanical properties of such regolith, i.e., a granular material under micro-gravity (µ-g) conditions. Any operations on asteroids that are not remote, need to interact mechanically with the surface material, and for resource ...
Biele, Jens, Ulamec, Stephan
openaire +2 more sources
A successful search for hidden Barbarians in the Watsonia asteroid family
, 2014 Barbarians, so named after the prototype of this class (234) Barbara, are a rare class of asteroids exhibiting anomalous polarimetric properties. Their very distinctive feature is that they show negative polarization at relatively large phase-angles ...
Bagnulo, S. +4 more
core +1 more source
Surface Modifications of a Space-weathered Ryugu Sample and the Reflectance Spectral Response
The Planetary Science JournalReflectance spectra from the surface of asteroid Ryugu, measured by the Hayabusa2 spacecraft, exhibit a metal-OH absorption at ∼2.7 μ m that is approximately half as deep as the returned samples measured in the laboratory and shifted toward longer ...
Hotaka Onuma +6 more
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Evidence of Possible Spectral Variability in the Patroclus–Menoetius Binary System
The Planetary Science JournalWe present new visible-wavelength spectroscopic observations of the Patroclus–Menoetius binary system in the Jupiter Trojan population. Motivated by previously published spectra from different instruments that showed evidence of significant longitudinal ...
Ian Wong +7 more
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Keck and Gemini Characterization of Hayabusa2# Rendezvous Target 1998 KY26
The Astronomical JournalNear-Earth object (NEO) 1998 KY _26 is a target of the Hayabusa2# spacecraft, which it will rendezvous with in 2031 July. The asteroid has been noted to rotate rapidly and has a large out-of-plane nongravitational acceleration.
Bryce T. Bolin +9 more
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Earth, Planets and Space, 2022 The shapes of regolith particles on airless bodies, such as the Moon and asteroids, are important to understand their formation and evolution on surfaces.
Akira Tsuchiyama +7 more
doaj +1 more source
Spectral properties of near-Earth and Mars-crossing asteroids using Sloan photometry
, 2016 The nature and origin of the asteroids orbiting in near-Earth space, including those on a potentially hazardous trajectory, is of both scientific interest and practical importance.
Carry, Benoit +3 more
core +3 more sources
Dynamical environment in the vicinity of asteroids with an application to 41 Daphne
Results in Physics, 2018 We studied the dynamical environment in the vicinity of the primary of the binary asteroid. The gravitational field of the primary is calculated by the polyhedron model with observational data of the irregular shape. The equilibrium points, zero-velocity
Yu Jiang
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The Discovery and Characterization of Earth-crossing Asteroid 2024 YR4
The Astrophysical Journal LettersWe describe observations and physical characteristics of Earth-crossing asteroid 2024 YR _4 , discovered on 2024 December 27 by the Asteroid Terrestrial-impact Last Alert System.
Bryce T. Bolin +11 more
doaj +1 more source
, 2008 We present new imaging polarimetric observations of two Main Belt asteroids, (234) Barbara and (387) Aquitania, taken in the first half of 2008 using the Dual-Beam Imaging Polarimeter on the University of Hawaii 2.2 meter telescope, located on Mauna Kea,
Alberto Cellino +22 more
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