Results 121 to 130 of about 117,776 (291)

Sulfide–Metal Assemblages on CR2 Chondrule Rims: Products of Nebular Fission–Sulfidization and Parent Body Oxidation–Serpentinization

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract We conducted a scanning electron microscopy (SEM) and transmission electron microscopy (TEM) study of sulfide–metal assemblages (SMAs) in minimally to moderately altered CR2 chondrites. The assemblages occur on chondrule rims and consist of kamacite cores rimmed by pyrrhotite.
S. A. Singerling, A. J. Brearley
wiley   +1 more source

Experimental constraints on the origin of metal and carbon in ureilite meteorites

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Ureilites are carbon‐rich ultramafic achondrites that display unique textures, including strips of metal and carbon phases situated along grain boundaries and in fractures. Shock metamorphism observed in ureilites suggests an episode of brittle deformation caused by impact disruption of their parent body.
Nicolas P. Walte   +2 more
wiley   +1 more source

Chromite in main group pallasite meteorites: Accessory mineral tracing planetesimal differentiation

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Main group pallasite meteorites (PMG) are samples of an early, highly differentiated magmatic planetesimal dominated by olivine and metal‐sulfide‐phosphide assemblages with accessory chromite among other phases. This mineralogy reflects mantle‐ and core‐related reservoirs, but the relative contributions of each and the overall petrogenesis are
Seann J. McKibbin   +6 more
wiley   +1 more source

Parent body thermal metamorphism of enstatite chondrites: Disentangling the effects of shock melting

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Enstatite chondrites (ECs) formed on at least two parent bodies, EH and EL. After the accretion of the EC parent bodies, EC material was subjected to varying degrees of parent body thermal metamorphism (measured by petrologic types 3–6), due to heat released by radioactive isotope decay.
Peter Mc Ardle   +9 more
wiley   +1 more source

Status of high intensity low energy injector for Jinping underground nuclear astrophysics experiments [PDF]

open access: bronze, 2018
Quantan Wu   +8 more
openalex   +1 more source

JAXA curation for Bennu samples returned by the NASA's OSIRIS‐REx mission

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract NASA's OSIRIS‐REx mission successfully collected and returned ~121.6 g of bulk samples from the B‐type, near‐Earth asteroid (101955) Bennu to Earth in September 2023. Upon returning to Earth, the samples were transported to the NASA Johnson Space Center where most of the samples have been stored and processed.
Rui Tahara   +34 more
wiley   +1 more source

Relativistic Binaries in Globular Clusters

open access: yesLiving Reviews in Relativity, 2006
The galactic population of globular clusters are old, dense star systems, with a typical cluster containing 10^4 - 10^7 stars. As an old population of stars, globular clusters contain many collapsed and degenerate objects. As a dense population of stars,
Benacquista Matthew J.
doaj  

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