Interstellar carbon in meteorites

Peter K Swart, M. M. Grady, C. T. Pillinger, R. S. Lewis, Edward Anders

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

The Murchison and Allende chondrites contain up to 5 parts per million carbon that is enriched in carbon-13 by up to +1100 per mil (the ratio of carbon-12 to carbon-13 is approximately 42, compared to 88 to 93 for terrestrial carbon). This "heavy7quot; carbon is associated with neon-22 and with anomalous krypton and xenon showing the signature of the s-process (neutron capture on a slow time scale). It apparently represents interstellar grains ejected from late-type stars. A second anomalous xenon component ("CCFXe") is associated with a distinctive, light carbon (depleted in carbon-13 by 38 per mil), which, however, falls within the terrestrial range and hence may be of either local or exotic origin.

Original languageEnglish (US)
Pages (from-to)406-410
Number of pages5
JournalScience
Volume220
Issue number4595
StatePublished - 1983
Externally publishedYes

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meteorite
carbon
carbon isotope
xenon
krypton
neon
chondrite
timescale

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  • General

Cite this

Swart, P. K., Grady, M. M., Pillinger, C. T., Lewis, R. S., & Anders, E. (1983). Interstellar carbon in meteorites. Science, 220(4595), 406-410.

Interstellar carbon in meteorites. / Swart, Peter K; Grady, M. M.; Pillinger, C. T.; Lewis, R. S.; Anders, Edward.

In: Science, Vol. 220, No. 4595, 1983, p. 406-410.

Research output: Contribution to journalArticle

Swart, PK, Grady, MM, Pillinger, CT, Lewis, RS & Anders, E 1983, 'Interstellar carbon in meteorites', Science, vol. 220, no. 4595, pp. 406-410.
Swart PK, Grady MM, Pillinger CT, Lewis RS, Anders E. Interstellar carbon in meteorites. Science. 1983;220(4595):406-410.
Swart, Peter K ; Grady, M. M. ; Pillinger, C. T. ; Lewis, R. S. ; Anders, Edward. / Interstellar carbon in meteorites. In: Science. 1983 ; Vol. 220, No. 4595. pp. 406-410.
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