Results 61 to 70 of about 15,631 (239)

Oued Chebeika 002: A new CI1 meteorite linked to outer solar system bodies

Meteoritics &Planetary Science, EarlyView.
Abstract CI1 chondrites are rare meteorites with high scientific value. In fact, they are the most chemically primitive meteorites and show evidence of intense parent‐body aqueous alteration. They also share strong similarities with samples from Ryugu and Bennu asteroids returned by the JAXA Hayabusa2 and NASA's OSIRIS‐REx missions.
J. Gattacceca, M. Gounelle, B. Devouard, J.‐A. Barrat, L. Bonal, A. J. King, C. Maurel, P. Beck, M. Roskosz, J.‐C. Viennet, D. Mukherjee, N. Dauphas, P. R. Heck, T. Yokoyama, K. López García, O. Poch, O. Grauby, C. S. Harrison, V. Vinogradoff, P. Vernazza, S. Tikoo, V. Vidal, P. Rochette, D. AuYang, D. Borschneck, J. Juraszek, B. Clark   +26 more
wiley   +1 more source

A Pre-flyby View on the Origin of Asteroid Donaldjohanson, a Target of the NASA Lucy Mission

The Planetary Science Journal
The NASA Lucy mission is scheduled to fly by the main-belt asteroid (52246) Donaldjohanson on 2025 April 20. Donaldjohanson (DJ hereafter) is a member of the primitive (C-type class) Erigone collisional asteroid family located in the inner main belt in ...
Simone Marchi, David Vokrouhlický, David Nesvorný, William F. Bottke, Josef Ďurech, Harold F. Levison   +5 more
doaj   +1 more source

Silicate–sulfide interaction within quenched melts of space weathered Ryugu grains

Meteoritics &Planetary Science, EarlyView.
Abstract The first few microns of the surface of airless bodies are subject to severe changes due to the harsh environment of space, known as space weathering. The Hayabusa2 sample return mission from the asteroid Ryugu provides the first opportunity to study these effects on a carbonaceous and hydrated body.
Sylvain Laforet, Hugues Leroux, Corentin Le Guillou, Maya Marinova, Adrien Néri, Adrien Teurtrie, Francisco de la Peña, Damien Jacob, Alexandre Fadel, David Troadec   +9 more
wiley   +1 more source

Mass, Density, and Radius of Asteroid (16) Psyche from High-precision Astrometry

The Astronomical Journal
We characterize asteroid (16) Psyche using high-precision astrometry, including the recent Gaia Focused Product Release. The gravitational perturbations of Psyche on other asteroids can be observable in the case of mutual encounters.
Davide Farnocchia, Oscar Fuentes-Muñoz, Ryan S. Park, James Baer, Steven R. Chesley   +4 more
doaj   +1 more source

Dynamical evolution of V-type asteroids in the central main belt

, 2014
V-type asteroids are associated with basaltic composition, and are supposed to be fragments of crust of differentiated objects. Most V-type asteroids in the main belt are found in the inner main belt, and are either current members of the Vesta dynamical
Carruba, V., Domingos, R. C., Huaman, M. E., Santos, C. R. Dos, Souami, D.   +4 more
core   +2 more sources

Selective sampling of asteroids, the Moon, and Mars: Factors affecting the numerical abundances of members of meteorite groups

Meteoritics &Planetary Science, EarlyView.
Abstract Meteorite collection inventories show that many related meteorite groups have very different numerical abundances (e.g., lunar versus Martian meteorites; Eagle Station pallasites versus main‐group pallasites; eucrites versus diogenites; ungrouped Antarctic irons versus ungrouped non‐Antarctic irons; carbonaceous chondrite‐related (CC) iron ...
Alan E. Rubin
wiley   +1 more source

Comparative Mid-infrared Spectroscopy of Dark, Primitive Asteroids: Does Shared Taxonomic Class Indicate Shared Silicate Composition?

The Planetary Science Journal
Primitive 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, Audrey C. Martin, Cristina A. Thomas, Joshua P. Emery   +3 more
doaj   +1 more source

Aqueous alteration on main belt primitive asteroids: results from visible spectroscopy

, 2014
This work focuses on the study of the aqueous alteration process which acted in the main belt and produced hydrated minerals on the altered asteroids.
Barucci, M. A., Fornasier, S., Lantz, C., Lazzarin, M.   +3 more
core   +2 more sources

Space Weathering in the Main Asteroid Belt: The Big Picture [PDF]

The Astrophysical Journal, 2006
The optical properties of silicate-rich asteroidal surfaces (namely, S-complex asteroids) evolve over time under the influence of several processes, known as "space weathering" (SW), and are amply analyzed in laboratory experiments. A first estimate of the spectral reddening rate, due to SW, on family S-type main-belt asteroids (MBAs; Jedicke et al ...
Lazzarin M., Marchi S., Moroz L. V., Brunetto R., Magrin S., PAOLICCHI, PAOLO, Strazzulla G.   +6 more
openaire   +5 more sources

The Transition From Jointing to Faulting Observed at the Koa'e Fault Zone, Hawai'i Volcanoes National Park, Hawaii

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract Fractures can exhibit mixed modes of displacement, that is, combinations of displacements parallel and perpendicular to the fracture plane, that make a displacement‐to‐length (Dmax/L) scaling analysis challenging. However, such analysis is important for understanding the propagation and nature of mixed‐mode fracture populations. In this study,
Hiu Ching Jupiter Cheng, Jay Mrazek, Christian Klimczak   +2 more
wiley   +1 more source