Carbynes: carriers of primordial noble gases in meteorites

Journal Article · Fri Sep 26 00:00:00 EDT 1980 · Science (Washington, D.C.); (United States)

DOI:https://doi.org/10.1126/science.209.4464.1512· OSTI ID:5635164

Whittaker, A G ^[1]; Watts, E J; Lewis, R S; Anders, E

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1. Aerospace Corp., El Segundo, CA

Five carbynes (triply bonded allotropes of carbon) have been found by electron diffraction in the Allende and Murchison carbonaceous chondrites: carbon VI, VIII, X, XI, and (tentatively) XII. From the isotopic composition of the associated noble-gas components, it appears that the carbynes in Allende (C3V chondrite) are local condensates from the solar nebula, whereas at least two carbynes in Murchison (C2 chondrite) are of exotic, presolar origin. They may be dust gains that condensed in stellar envelopes and trapped isotopically anomalous matter from stellar nucleosynthesis.

• OSTI ID: 5635164
• Journal Information: Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 209; ISSN SCIEA
• Country of Publication: United States
• Language: English

Related Subjects

640107* -- Astrophysics & Cosmology-- Planetary Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AGGLOMERATION
ALLOTROPY
CARBYNES
CHEMICAL COMPOSITION
CHEMISTRY
CHONDRITES
COHERENT SCATTERING
CONDENSATES
COSMOCHEMISTRY
DEPOSITION
DIFFRACTION
ELECTRON DIFFRACTION
ELEMENTS
FLUIDS
GASES
INTERSTELLAR GRAINS
ION PROBES
ISOTOPE RATIO
METEORITES
MORPHOLOGY
NEBULAE
NONMETALS
PARTICLES
PROBES
RADICALS
RARE GASES
SCATTERING
SOLAR NEBULA
STONE METEORITES
SURFACE COATING