Molybdenum isotopic composition of single silicon carbides from supernovae.

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Presolar silicon carbide grains form in a variety of types of stars, including asymptotic giant branch red giant stars and supernovae. The dominant mechanisms of heavy element nucleosynthesis, the s-process and r-process, are thought to occur in AGB stars and supernovae, respectively. We have previously reported that mainstream SiC grains have strong enrichments in the s-process isotopes of Sr, Zr and Mo. We report here the first measurements of Mo isotopes in X-type SiC grains, which have previously been identified as having formed from supernova ejecta.

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5 p.

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Amari, S.; Clayton, R. N.; Davis, A. M.; Lewis, R. S. & Pellin, M. J. February 3, 1999.

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Presolar silicon carbide grains form in a variety of types of stars, including asymptotic giant branch red giant stars and supernovae. The dominant mechanisms of heavy element nucleosynthesis, the s-process and r-process, are thought to occur in AGB stars and supernovae, respectively. We have previously reported that mainstream SiC grains have strong enrichments in the s-process isotopes of Sr, Zr and Mo. We report here the first measurements of Mo isotopes in X-type SiC grains, which have previously been identified as having formed from supernova ejecta.

Physical Description

5 p.

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OSTI as DE00012386

Medium: P; Size: 5 pages

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  • 30th Lunar and Planetary Science Conference, Houston, TX (US), 03/15/1999--03/19/1999

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  • Report No.: ANL/CHM/CP-98350
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 12386
  • Archival Resource Key: ark:/67531/metadc624398

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  • February 3, 1999

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  • June 16, 2015, 7:43 a.m.

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  • April 11, 2017, 12:25 p.m.

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Amari, S.; Clayton, R. N.; Davis, A. M.; Lewis, R. S. & Pellin, M. J. Molybdenum isotopic composition of single silicon carbides from supernovae., article, February 3, 1999; Illinois. (digital.library.unt.edu/ark:/67531/metadc624398/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.