Results 11 to 20 of about 15,866 (198)

Mineralogy and Surface Composition of Asteroids [PDF]

open access: yes, 2015
Methods to constrain the surface mineralogy of asteroids have seen considerable development during the last decade with advancement in laboratory spectral calibrations and validation of our interpretive methodologies by spacecraft rendezvous missions ...
Burbine, Thomas H.   +4 more
core   +2 more sources

THERMAL TOMOGRAPHY OF ASTEROID SURFACE STRUCTURE [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT Knowledge of the surface thermal inertia of an asteroid can provide insight into its surface structure: porous material has a lower thermal inertia than rock. We develop a means to estimate thermal inertia values of asteroids and use it to show that thermal inertia appears to increase with spin period in the case of main-belt ...
Harris, Alan, Drube, Line
openaire   +3 more sources

Surface Properties of Near-Sun Asteroids

open access: yesThe Planetary Science Journal, 2022
Abstract Near-Earth asteroids (NEAs) with small perihelion distances reach subsolar temperatures of ≥1000 K. They are hypothesized to undergo “supercatastrophic” disruption, potentially caused by near-Sun processes such as thermal cracking, spin-up, meteoroid impacts, and subsurface volatile release, all of which are likely to cause ...
Carrie E. Holt   +10 more
openaire   +5 more sources

The unexpected surface of asteroid (101955) Bennu [PDF]

open access: yesNature, 2019
NASA'S Origins, Spectral Interpretation, Resource Identification and Security-Regolith Explorer (OSIRIS-REx) spacecraft recently arrived at the near-Earth asteroid (101955) Bennu, a primitive body that represents the objects that may have brought prebiotic molecules and volatiles such as water to Earth1.
Lauretta, D.S.   +275 more
openaire   +5 more sources

Asteroid Surface Geophysics [PDF]

open access: yes, 2015
28 pages, 8 figures. Chapter to appear in the book ASTEROIDS IV, (University of Arizona Press) Space Science Series, edited by P. Michel, F.
Murdoch, Naomi   +3 more
openaire   +4 more sources

Space weathering of asteroidal surfaces [PDF]

open access: yesAstronomy and Astrophysics, 2010
Context. The surfaces of airless bodies in the Solar System are continuously altered by the bombardment of micrometeoroids and irradiation by solar wind, flares, and cosmic particles. Major effects of this process – space weathering – are darkening and “reddening” of the spectra of surface materials, as well as a “degrading” of absorption features ...
Z. Kaňuchová   +3 more
openaire   +1 more source

Optimization of Future Multifilter Surveys Toward Asteroid Characterization

open access: yesThe Astronomical Journal, 2023
The aim of this paper is to find a set of photometric passbands that will give optimal results for spectrophotometric classification of asteroids into taxonomic types and classes.
Hanna Klimczak   +6 more
doaj   +1 more source

The origin of planetary impactors in the inner solar system [PDF]

open access: yes, 2005
New insights into the history of the inner solar system are derived from the impact cratering record of the Moon, Mars, Venus and Mercury, and from the size distributions of asteroid populations. Old craters from a unique period of heavy bombardment that
Ito, Takashi   +4 more
core   +3 more sources

Periodic motion near the surface of asteroids [PDF]

open access: yesAstrophysics and Space Science, 2015
We are interested in the periodic motion and bifurcations near the surface of an asteroid. The gravity field of an irregular asteroid and the equation of motion of a particle near the surface of an asteroid are studied. The periodic motions around the major body of triple asteroid 216 Kleopatra and the OSIRIS REx mission target asteroid 101955 Bennu ...
Jiang, Yu, Baoyin, Hexi, Li, Hengnian
openaire   +2 more sources

INVESTIGATIONS OF SURFACES OF ATMOSPHERE LESS BODIES USING SCATTERED SOLAR LIGHT

open access: yesOdessa Astronomical Publications, 2017
Sunlight scattered by surfaces of atmosphere less bodies carry information about details of these surfaces. Burns and Tedesco in 1979 published formula for estimations of dimensions of details located on surfaces of asteroids.
V. V. Prokofjeva-Mikhailovskaja   +1 more
doaj   +1 more source

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